Archive for the ‘global warming’ Category
global warming or climate change? Does it matter? More importantly, how are we going in dealing with it?
…climate change (now interchangeably, albeit inaccurately, called global warming)….
Vaclav Smil, How the world really works, pp 168-9
Man-0-man-o-man-o-man-o-man-o-man….
I was a bit miffed by this slight put-down, because for some time I’ve been insisting (as if anybody noticed) on using the term ‘global warming’ in the face of what I’ve considered a move towards the ‘climate change’ term. In other words my subjective impression has been that ‘global warming’ is being replaced by ‘climate change’, a less urgent term to my way of thinking. I suspect this impression has come from my listening to expert podcasts and videos from New Scientist and other scientific sources, and it seems to me that some agreed-upon descriptor has come down from the Scientists on High, which of course stirs my anti-authoritarian blood.
My semi-informed view is that, yes, the climate is changing due to ‘greenhouse’ gases, by-products of our industries, particularly carbon dioxide, methane and water vapour, accumulating in the atmosphere, creating a greenhouse effect which is essentially a warming effect. And heat is energy, creating volatility and unpredictability. And the water vapour in particular, evaporating from the oceans, is broadening the tropical belt, causing storms, floods, lightning and fire. Of course there are countervailing factors – ice melt from the poles cools the oceans, adding to the volatility.
So I’ll go online to explore this rather minuscule issue, in my minuscule way. The US Geological Survey (USGS) has this to say:
Although people tend to use these terms interchangeably, global warming is just one aspect of climate change. “Global warming” refers to the rise in global temperatures due mainly to the increasing concentrations of greenhouse gases in the atmosphere. “Climate change” refers to the increasing changes in the measures of climate over a long period of time – including precipitation, temperature, and wind patterns.
That tells me it’s all much of a muchness, and the climate change we’re concerned about today is a product of greenhouse gas concentrations and the warming this is creating. So I’ll continue to use the global warming term, which isn’t at all inaccurate, because for me at least, it’s clear that the climate changes we’re experiencing stem from this warming, which is why experts like to connect our planetary future to 1.5 degrees, or 2, or 3 degrees, etc. Having said that, I’m more than impressed by Vaclav Smil’s analytical approach to the Big Issues of our modern world, and by his work ethic, which of course puts me to shame (he has written 36 books on energy, food, technology and other key aspects of human civilisation). He can be pedantic, but in a useful way, for example in pointing out that the ‘greenhouse effect’ isn’t really about how greenhouses work:
Labelling this natural phenomenon as the ‘greenhouse effect’ is a misleading analogy, because the heat inside a greenhouse is there not only because the glass enclosure prevents the escape of some infrared radiation but also because it cuts off air circulation. In contrast, the natural ‘greenhouse effect’ is caused solely by the interception of a small share of outgoing infrared radiation by trace gases [water vapour, carbon dioxide, methane and nitrous oxide].
V Smil, How the world really works, p178
Yeah, we kind of knew that, Vaclav, but thanks for the detail. What’s more interesting in his book is the detail of the challenges we face, and how we’re actually facing them. And one of the critiques he makes, what with all these COP meet-ups and IPCC projections, is the lack of detail and realism in dealing with these enormously complex issues faced by diverse states at varying levels of development, with competing needs, resources, issues and challenges. Our environmental footprint is embiggening, though its embiggening rate is reducing, in much the same way as our global population is, and our continued reliance on the Big Four, cement, steel, plastics and ammonia, to maintain our civilisations, means that fossil fuel emissions and global temperatures will continue to rise in coming decades. Moreover, as Smil points out, predictions about the growth in EV sales haven’t panned out in the last decade or so, and many other prognostications, especially about the future, have fallen flat, such as global supersonic flight, the population bomb, peak oil (I once read a book on that one), nuclear energy (for air travel and for uncovering natural gas fields, and some even nuttier schemes, such as creating ‘instant harbours’!), synthetic life forms (good-looking, hopefully), the 2000 tech-meltdown, and so on.
We seem often to underestimate our genius for surviving – and to overestimate our tendency to fuck things up. Which isn’t to say that we always get things right, or foresee the results of our manipulations of the so-called natural world. Smil is undoubtedly a good skeptic in this area, although I do find him something of an aloof overseer, unlike, for example, Gaia Vince, an intrepid traveller, moving from coal-front to coal-front, befriending and interviewing movers and shakers in the field, from the Sahel to the Columbian mines and the disappearing Himalayan glaciers. Both individual types help us to view the world richly, from individual and global perspectives (and it’s interesting, and unsurprising, that the overseer is male, and the engager is female).
Another problem preventing us from facing the real issues is the petty but mass-murderous ambition of the Putins and Xi Jinpings of the world and their horrific concepts of nationalism and power. The WEIRD world needs to reach out to the suffering peoples of these countries – especially the Chinese, a smart, industrious, ambitious and forward-thinking people who would thrive under a democratic regime (the Russians, by contrast, seem more cowed by their centuries of horror). This raises the question of how we deal with a country like China. My approach would be to maintain relations as much as possible while promoting better, more inclusive forms of government. Raise again and again the lack of women in government. Ask why this is so. What is the justification for an all-male politburo? How can they (the tiny governing minority) pretend that women in power is ‘Western’ and anti-Chinese? Isn’t the generally more collaborative approach of women a boon at a time when we face global crises needing global, collaborative solutions? Doesn’t the drumbeat of war, in these times, sound jarring and out of tune?
A greater internationalism is upon us, and more of it will be forced upon us as we face a global warming issue that will worsen in coming decades, without any doubt. Nationalism tends to get in the way of responses to international crises, as happened with the recent global pandemic. We tend to live in the moment, an eternal present, and we don’t realise, most of us, that if we were born a couple of centuries ago, we could travel throughout much of the world without crossing a border, without having to produce a passport or a visa, and without having to prove our ‘legality’. And we certainly can’t predict what systems will pertain in a couple of centuries from now, but they’re surely more likely to promote communication, co-ordination and exchange rather than isolation. I can only thank the writers and communicators that I’m able to plug into for helping me to focus on the future – my own and beyond – with as much realism and positivity as can reasonably be mustered.
References
How the World Really Works: A Scientist’s Guide to Our Past, Present and Future, by Vaclav Smil, 2022
Adventures in the Anthropocene; Transcendence; Nomad Century, by Gaia Vince, 2018 – 2021
Thoughts on energy – crisis and survival
coal-fired power plant, Germany
Recently I was talking to my language group about climate change, or global warming as I prefer to call it, and I uttered the deepity that heat equals energy, and I even wrote it up on the whiteboard as an ‘equation’ of sorts.
I was making the simple but important point that stuff in the environment, particularly air and water, moves around faster when heated up, just as it slows down when cooled, or frozen, the reason why freezers and fridges are so useful. So from an environmental perspective, heat means more volatility, more movement, more action, like a pot of water on the stove, which can be pretty disastrous for the biosphere.
Useful enough as far as it goes, but of course there’s much more to energy than this. I’m reading, inter alia, How the world really works, by Vaclav Smil, the first chapter of which is titled ‘Understanding energy’. He quotes Richard Feynman:
It is important to understand that in physics today we have no knowledge of what energy is. We do not have a picture that energy comes in little blobs of a definite amount. It is not that way. However, there are formulas for calculating some numerical quantity, and when we add it all together it gives… always the same number. It is an abstract thing in that it doesn’t tell us the mechanism or the reasons for the various formulas.
V Smil, How the world really works, p23
Energy is something we get from something, something that is energetic, like our sun. Water falling down a waterfall has kinetic energy, or gravitational energy. Plants absorb energy from the sun to fuel a super-complex process called photosynthesis, described in detail in Oliver Morton’s Eating the sun, one of the most intellectually demanding books I’ve ever read. We’ve discovered, over the past few centuries, that fossilised plant material, starting with coal, is a rich source of energy, much richer than wooden logs set alight.
We started to get a ‘modern’ sense of energy through the development of physical laws. Newton’s second law of motion is key here. It basically states that the acceleration of an object (a state of disequilibrium) is due to an unbalanced force, and this acceleration is dependent upon the object’s mass and the force acting upon it. This three-way relationship is usually presented as F = m.a, or a = F/m. Or, as Smil puts it:
Using modern scientific units, 1 joule is the force of 1 newton – that is, the mass of 1 kilogram accelerated by 1 m/s² acting over a distance of I metre.
Needless to say, this isn’t how people without training in physics think of energy. The ‘capacity for doing work’ is one way of putting it – and J C Maxwell tried a physical definition of work as ‘[an] act of producing a change of configuration in a system in opposition to a force which resists that change’.
Whether or not it can be described as work, energy surely changes stuff. The energy of the sun not only changes plants (photosynthesis) but also our oceans and lakes (evaporation), and the make-up of the sun itself (nuclear fusion).
And living things expend energy in doing work – to obtain and consume food (other living things) to provide energy to go on living and working. And over time we humans have evolved to look for and find ways to obtain more energy via less work. Or perhaps it would be more accurate to say we’ve evolved ways of doing this, as a collective species, more effectively and successfully than any other living thing, and at the expense of many other living things.
This is a bit of a problem for us. Unlike other living things, we know that we’re totally reliant on the biosphere that we dominate. That our survival and thriving depends upon the living stuff that we kill. And much of that stuff – grains, legumes, fungi, root vegetables, as well as poultry, fish, lambs and cattle – we bring to life for the sole purpose of killing them, in multi-billion dollar industries. And yet we must eat, and we really enjoy doing so, or are habituated, in an affluent society, to mix with others in interactions associated with food. We’ve certainly gone beyond thoughts, in the WEIRD world, that we must eat to stave off starvation, or to top up our energy.
We require energy for other things. Travel, thought, conversation, exploration, domination. And this has required more ‘efficient’ forms of energy. More output for less input (at least from we humans). Outsourcing work to machines, fuelled by non-human sources of energy.
How we came to understand that fossil deposits – first coal, then crude oil, then methane or ‘natural gas’ – could be exploited as seemingly limitless energy sources requires a separate blog post, and involves many individual contributors, both theoretical and practical. And in exploiting that energy we didn’t realise, or much care, that it might come at a cost. We rode that energy bonanza, and the human population rose from one billion, ‘achieved’ in the middle of the 19th century, to 8 billion today, and counting, with a billion added every 13 years at current rates.
This has been very successful, in the short term. I used to think about this with the analogy of bacteria in a Petri dish, multiplying exponentially, then collapsing spectacularly when all the nutrients are consumed. But we’re not bacteria, and the nutrient situation in a Petri dish bears little comparison to that of our evolving, dynamic biosphere. We, as a species, have evolved the capability of adapting to transformations to our environment, of our own making, in order to survive those transformations – by transforming those transformations. That’s what we do. Indeed that’s what we must do, to survive, and thrive.
I’m not extolling our virtues here. My view re humanity, FWIW, lies somewhere between the ‘beginning of infinity’ all-conquering optimism of David Deutsch and the eternal-present ‘seeing’ of John Gray (Straw Dogs). We plan for our future because we want to endure, and unlike other species, we know that there is a future, a human future, beyond our individual selves. And we want that future to be successful, whatever that means.
So, returning to energy – can we find ways to transform our energy supply so that we can sustain ourselves while minimising the damage to the web of other life? At present, we’re having no problems multiplying our own species, but other species, apart from those we’ve learned to exploit for food, are diminishing and disappearing. And yet, there’s much talk of the value of human diversity.
I’ve written about energy futures elsewhere. The continuing exploration and development of nuclear fusion, improvements in fission technology, improving the energy efficiency and versatility of solar panels and surfaces, developments in materials science, recycling technologies and so on. All of this is important, and often exciting. We also have to refocus our energy sources to be less exploitative of other species – less reproduction for slaughter, which is not only unnecessarily cruel but also wasteful of land and other resources, especially for large grazing and consuming species. Gaia Vince reports on the ‘fake meat’ business that I’ve written about in the past:
Producers are using biotechnology to create fake meats that bleed like beef – the Impossible Burger is made from a soy protein with a yeast that has been genetically modified to produce leghaemoglobin, an iron-carrying molecule like haemoglobin that gives the burger its meaty bloodiness. However most of what we enjoy about meat is the taste and aroma of the Maillard chemical reaction: this is the fusion of sugars and amino acids that occurs when the food browns during cooking. This can now be convincingly replicated with plant-based molecules.
G Vince, Nomad century, p161
According to a report cited by Vince, ‘within 15 years the rise of cell-based meat will bankrupt the US’s beef industry, at the same time removing the need to grow soya and maize for feed’. Sounds a bit optimistic, but watch this space.
Clearly the future for us, and for a healthy, diverse biosphere, depends on a transformation of our energy production and use. And to be fair to our collective selves we need to help and protect those who are suffering most from our impact on the biosphere, a suffering disproportionately felt by those who’ve had the least impact. My guess is that the transformation will come, but too late for too many. We’re great survivors, but terribly selfish.
References
Vaclav Smil, How the world really works, 2022
https://www.physicsclassroom.com/class/newtlaws/Lesson-3/Newton-s-Second-Law
Gaia Vince, Nomad century, 2022
bonobos and humans – immanence and transcendence?
the struggle against scumbaggery
Canto: So, having heard recently that Indonesia is passing laws to criminalise sex outside of marriage, and that Uganda is passing laws to criminalise anyone who identifies as homosexual, I’m feeling a touch of despair about the future bonobo society with human characteristics that I intended to impose upon the globe in the next few weeks.
Jacinta: Well it’s interesting to note that Indonesia is a predominantly Moslem country, and Uganda is overwhelmingly Christian, but there’s no doubt that religious ideology is behind both of these developments.
Canto: Yes, the WEIRD world, which neither of these countries belong to, is becoming increasingly secular, so much so that S should be fitted into the acronym – a world of WEIRDS, perhaps? So I suppose I should limit my ambition to the WEIRDS of the world. But that not’s what I want to talk about today, though it is related, sort of. Remember Ferdinand Mount’s The subversive family, an attempt to argue that the family unit, and so monogamy, has always been the norm, and has managed to subvert all attempts to replace or diminish it? I’ve been thinking a bit about this lately, and wondering about the unknown history of Homo sapiens and their antecedents, and their socio-sexual relations and child-rearing, given that our closest living relatives, bonobos and chimps, are quite different from each other in these traits.
Jacinta: Yes, and neither of them are monogamous. It’s interesting, but hardly surprising, that we’re inordinately interested in the human side of the divide between us and the so-called HC-LCA (the Human-Chimpanzee Last Common Ancestor), but not so much in the chimp-bonobo side.
Canto: Well of course, and even with that inordinate interest we’re very far from working out our human ancestry going back any more than two million years or so, let alone their socio-sexual arrangements. Anyway we’re not as monogamous as we pretend to be, and no amount of government regulation, or religious devotion, is going to change that.
Jacinta: But it’s interesting that we hold to a monogamous child-rearing ideal, and I’m wondering if that’s always been the case, or how long it has been, or whether there’s a worthwhile alternative, as arguably suggested by our bonobo heroines.
Canto: Well I know that single parent families are on the rise in Australia, and no doubt throughout the WEIRDS world, and any stigma associated with this is waning, but I’m not sure that this is exactly a movement in the direction of human bonoboism. It seems to me that the key to bonobos’ attraction is a kind of multiple-parenting system – not so compartmentalised. Sharing the love.
Jacinta: Bonobo and chimp dads likely don’t know for sure who their kids are – I just can’t imagine that being okay for humans any time soon, or even longer than soon.
Canto: Good point, though it’d be great if we could nurture and delight in kids just for being kids, rather than our kids. And I can well imagine that being the case when we lived together in caves rather than wee domestic units. It takes me back to the kibbutzim idea that I learned about as a teenager, after years of feeling trapped in my parents’ loveless marriage. Communal parenting…
Jacinta: But without the socialism? Or the Jewishness for that matter…
Canto: Well most kibbutzim today are secular, and they’re still very much with us – well not exactly with us, as they’re on the other side of the world, but I’m not sure about the socialism. Is bonobo society socialist?
Jacinta: Well, that’s the thing. Kibbutzim are, I presume, rules-based, top-down forms of communal living, whereas bonobo society just happened, a relaxed, happy-seeming culture, with females bonding and looking out for each other and their offspring in a way that the males, over time, acceded to. Nothing forced or regulated about it. I’m done, frankly, with labels like socialism and capitalism. I mean, we’re the most socially constructed mammalian species on the planet, the key to our success if you like, and you can call that socialism I suppose. And we’re more thoroughly capitalist than any other species, capitalising on a massive number of other living resources to survive and thrive, not just through pure consumption but domestication and other manipulative practices.
Canto: Well said. But I still have a soft spot for the kibbutz idea, without Yom Kippur or Christmas, a thoroughly sciencey, sexy, smiley celebration of smart, sassy, sisterly communal living…
Jacinta: Not quite the bonobo world though, is it? Sounds more like dropping out. The original kibbutzim were based on land, and agriculture. And what would the bonobo world be without its forest lands and their simple resources? The world of WEIRDS wants so much more, a kind of eternal transcendence. To be more, to have more, to make more, to do more, to live more, as if it’s more satisfying to never be satisfied.
Canto: Hmmm. Thought-provoking, but I just wanted to focus on monogamy and child-rearing, and now you’ve given me a headache. I’m wondering though – because it niggles at the back of my mind, if the bonobo world would really work for us. Our success, if you want to call it that, is due to our endless ambition – caused presumably by those big brains of ours. To paraphrase Marx, those big brains have made us want to not just understand the world, but to change it. And boy have we ever fucking changed it.
Jacinta: Yeah, just ask those aurochs and quaggas and moas and dodos and passenger pigeons… oh but – we can’t.
Canto: Not to mention the millions of humans we slaughtered in wars, worked to death in mines and factories, and fucked to death for our entertainment, but then again, what a piece of work is a man, in apprehension how like a god! But a woman – maybe a woman is more than just a quintessence of dust. And if she is, maybe that little soupçon is just what humanity needs to flavour its thinking about the biosphere and its endless exploitation.
Jacinta: Yes well, don’t put all the responsibility onto us mate. And yet – we need plenty of adventurous spirit as well as a sense of ‘nobody left behind’ to navigate ourselves out of self-created disasters such as global warming, toxic work environments (both physical and mental), and species depletion. And I’m not saying this from some simplistic perspective of male traits admixed with female ones.
Canto: No because we’re already getting mixed up, in a good way. The WEIRDS are taking over the world – have taken over the world…
Jacinta: Yes, China is so western now, and so democratic…
Canto: Well, that’s actually half true. The term ‘western’ is surely the weakest link in the WEIRDS chain. I mean China’s difficult to analyse with its vast population, which means tons of poverty as well as tons of richesse. It has urbanised very rapidly, yet its rural and mostly poor population is still greater than the entire population of most countries. But if you take the rapidly educating and enriching and industrialising urban elites, you’ve got a pretty strong candidate for something equivalent to WEIRDness.
Jacinta: And then of course there’s the urban poor. But you’re right, the term ‘western’ has never made a lot of sense to me. EIRDS perhaps?
Canto: Not the most cromulent of acronyms. RIDES is at least a word, but… I think we’re stuck with WEIRD/S for the foreseeable. Anyway, I think we need to unshackle ourselves from patriarchal religion – I know the WEIRD world largely has, but I’m impatient. Doing so I think will enable more women to be part of the solutions to the problems we face, and the problems other species face because of us.
Jacinta: China and Japan are pretty secular these days, but how many female leaders have they had in the last century or so?
Canto: Yes it’s taking its time – China has now achieved female literacy and education levels that are pretty well equivalent to those of males, but perhaps education isn’t entirely equivalent to empowerment.
Jacinta: Under Xi’s dictatorship female empowerment has clearly gone backwards. Hopefully he’ll be dead soon, but he’s probably already trying to ensure another macho thug succeeds him. Women have absolutely zero power in today’s China. As for Japan, they were ranked 110th in the world for gender equality in 2019, and the sexism there is really stark, in spite of 70% of women being in the workforce. You’ll remember our semi-serious piece about bonobos not wearing stupid shoes, meaning stilettos? There was a ruckus just a few years ago (2019) about that fucked-up footwear, which went semi-viral worldwide, as reported in The Guardian:
Meanwhile, even something as apparently straightforward as being allowed to wear whatever shoes you like continues to prove tricky. In response to the #KuToo petition [the hash-tag puns on ‘shoes’ and ‘pain’], Japan’s minister of labour, Takumi Nemoto, told parliament that requiring high heels in the workplace was perfectly acceptable – sparking further outrage at the government of Shinzo Abe, whose “Womenomics” policy is supposedly attempting to bring more women into the workforce.
Canto: Presumably Mr Nemoto wasn’t wearing high heels when he said this, so WTF.
Jacinta: At least there was blowback, but not nearly enough. Sigh, the arc of progress is long, but it bends towards beating sense into blokey blokes, ou quelque chose comme ça.
Canto: Transcendence may not be imminent, but it’s eminently desirable, for the benefit and beautification of our immanent being…
References
Ferdinand Mount, The subversive family, 1982
https://en.wikipedia.org/wiki/Kibbutz
Gaia Vince, Adventures in the Anthropocene, 2014
Gaia Vince, Transcendence, 2019
Click to access shsconf_sschd2023_02001.pdf
https://www.theguardian.com/world/2022/oct/22/where-are-the-women-at-the-top-of-chinese-politics
a bonobo world 33: they don’t wear stillettos
How are the Maldives faring under global warming?
Lily Beach Spa and Resort, Maldives. Book Now!
Jacinta: So we’re reading Adventures in the Anthropocene, by science writer and intrepid traveller Gaia Vince, which we picked up at Adelaide Writers’ Week earlier this year. She was a speaker, probably from a remote location, but I didn’t hear her talk….
Canto: Yes, but we’re certainly interested in the topic – global warming, problems, possible solutions, and the female and male heroes trying to effect those solutions. We bought two of Vince’s books – Adventures in the Anthropocene, published in 2014, and Transcendence, in 2019. And at last we’ve gotten round to reading them, in order of publication. We’re about halfway through the first book, which is divided into sections of concern and interest. The first section, “Atmosphere”, deals with the cause of the problem, human changes to our atmosphere, increasing CO2, methane, chlorofluorocarbons and such. The next sections, “Mountains”, “Rivers”, “Farmlands” and “Oceans” treat of glacial melting, dammed, over-fished and polluted rivers, drought-affected and nutrient-depleted soils, and rising sea levels, among other things…
Jacinta: Which brings us to the Maldives, a group of numerous tiny-teeny low-lying tropical islands in the north Indian Ocean, between the Arabian Peninsula and India, regarded as ‘canaries in the coalmine’ for global warming. The smallest and most geographically dispersed nation in Asia, it’s apparently been a getaway place for the super-rich, but most of the local population are dirt poor, and heroin addiction is rife, or at least was ten years ago. Vince met with the island nation’s then President, Mohammed Nasheed, a climate activist who’d taken over from some more or less corrupt characters, and was soon to be ousted by same. My further reading tells me that he’s still active in Maldivian politics, in spite of its brutal nature – corruption in the country has drawn criticism from human rights organisations, and caused its withdrawal from the Commonwealth of Nations in 2016. It has since been reinstated…
Canto: Yes, the Maldives is surely the oddest nation on earth. It has about half a million inhabitants (tiny for an Asian country – if that’s what it is), spread over a territory of 90,000 square kilometres, of which only 300 square kilometres is land! It features a vast mountain range, entirely under water, and overall it’s the world’s most low-lying nation. Apparently the tiny islands are separated by large distances, but navigation between them is near-impossible due to all the coral reefs surrounding them. The marine ecosystems there are among the richest and most diverse on the planet.
Jacinta: Politically it’s been very up and down. It’s a Moslem nation, and to be honest, there haven’t been too many Moslem nations with great democratic, open-society credentials. Wikipedia relates plenty of cloak-and-dagger stuff, with timely, or untimely, depending on perspective, intervention from India.
Canto: It was part of the British Empire/Commonwealth for a period, after colonising efforts from the Dutch and the Portuguese. Their National Day relates to the extirpation of the Portuguese, who’d tried to impose Christianity on the islands. The Brits agreed to a protectorate system which allowed for Home Rule, apparently.
Jacinta: In 1953 one Mohamed Amin Didi became the Maldivian President. He was a progressive, who promoted the education of women, and tried to deal with addiction issues on the islands. He was more or less beaten to death for his efforts.
Canto: Yes, the history of the region is a sorry saga, but let’s focus more on the present. There are various predictions as to when the islands will disappear completely under rising seawater, and this will of course depend on the rate of warming, as well as mitigation processes on the islands themselves.
Jacinta: Yes, it seems that Maldivians are at the mercy of the rest of the world’s emitters. But here’s an interesting quote from Wikipedia:
In 2020, a three-year study at the University of Plymouth which looked at the Maldives and the Marshall Islands, found that tides move sediment to create a higher elevation, a morphological response that the researchers suggested could help low lying islands adjust to sea level rise and keep the islands habitable. The research also reported that sea walls were compromising islands’ ability to adjust to rising sea levels and that island drowning is an inevitable outcome for islands with coastal structures like sea walls.
Canto: Hmm, I can visualise that idea of tides moving sediments to build up the land – more than receding tides might remove sediments – but I can’t imagine it making a big difference. But what would I know?
Jacinta: Yes, and as to sea walls, they’re of course an artificial solution – which isn’t necessarily all bad, but they’re generally seen as short-term solutions, designed or financed by the rich to keep their coastal properties intact. I believe the most recent IPCC report, every word of which seems to be scrutinised and questioned by various governments, refers to some proposed solutions as ‘maladaptations’ without being too specific. In any case, natural solutions such as mangroves don’t work everywhere…
Canto: And rising sea levels cause other problems, such as contamination of underground aquifers in low-lying islands and coastal areas.
Jacinta: Representatives from these regions – the Maldives and the Marshall Islands for example – are arguing that, for the foreseeable, there’s no alternatives to sea walls, and they should be paid for largely by the world’s principal emitters, which sounds reasonable to me.
Canto: There’s another issue – the concrete generally used to build these walls also contributes to global warming. So here’s an apparent solution, or at least a partial one. Cement, the essential binding ingredient of concrete, is made from clinker, ‘a residue produced by firing limestone and clay in a furnace heated to 1,450°C’, a temperature achieved by burning fossil fuels. Cement-making causes about 7% of annual CO2 emissions. According to the PreventionWeb site, there’s a solution:
One of the biggest challenges facing the construction sector is reducing concrete’s carbon footprint while keeping the benefits of a cheap and durable building material. One way to achieve this is by replacing cement with recycled industrial waste, such as granulated slag from steelworks and pulverised ash from coal power plants (essentially, the residue that can be scraped out of the bottom of furnaces).
Our newly designed low-carbon concrete mixes use both of these recycled materials. In fact, it was possible to use up to 60% steel furnace waste in the mixes without the concrete losing its compressive strength, which is crucial for ensuring the structure holds up. The resulting mixes had a 40% smaller carbon footprint than traditional concrete.
Jacinta: Not bad. And I suppose engineering solutions, if that’s what this is, are important for mitigation while we tackle the actual emissions problem.
Canto: Well this is tackling the emissions problem too, kind of. Anyway lots of piecemeal solutions do add up.
Jacinta: Hmmm. And apparently they’ve been building new islands in the Maldives and elsewhere. Not floating islands, that would rise with the tides, which some enterprising individuals have created, but massive things upon which to build new tourist resorts and high-rise buildings. Lots and lots of sand apparently. It’s already happening. Oh brave new world, that has such people in it!
References
Gaia Vince, Adventures in the Anthropocene, 2014
Gaia Vince, Transcendence, 2019
https://en.wikipedia.org/wiki/Maldives
Scientists warn seawalls can make rising waters worse in the long run
Maldives’ man-made islands offer answer to sea-level rise
stuff on nuclear energy, fossil fuel emissions and the future
- China — 9,877.
- United States — 4,745.
- India — 2,310.
- Russia — 1,640.
- Japan — 1,056.
- Germany — 644.
- South Korea — 586.
- Iran — 583.
Jacinta: So we heard recently, on an SGU podcast, that more CO2 was pumped into our atmosphere in 2022 than in any previous year, in spite of more people and governments being on board with combatting global warming than ever before.
Canto: Yes, depressing but unsurprising, with the population continually rising and, more importantly, more of the global population catching up with the WEIRD world. We can only hope that the increase in CO2, and greenhouse gases generally, will slow, and soon be reversed, as will the population. I mean, the population needs to stabilise, like ZPG, and the greenhouse effect needs to be reversed.
Jacinta: Well what the SGU has highlighted is that Germany, and not just Germany, is closing nuclear power plants much more readily than fossil fuel production, or fossil fuel imports, because… why?
Canto: Because of the overblown reaction to the Fukushima disaster, which, if cool heads prevailed, should not have affected a country that doesn’t tend to be hit by tidal waves, that doesn’t suffer from the ‘managerial capture’ and the problems in nuclear safety management that plagued the Japanese nuclear industry…
Jacinta: But there’s also the long lingering concerns about nuclear energy, in Germany and globally, as I recall from the days way back in the 1980s when there were big protests about our uranium exports here in Australia, which I must admit to being involved in. Fears about nuclear radiation were at quite a height then, what with the Maralinga tests in South Australia, our state, in the 1950s and 60s. The blast sites were still found to be highly contaminated in 1985.
Canto: So – Three Mile Island, Chernobyl and Fukushima – three nuclear incidents from which we’ve learned a heap. And from all the testing done in the Pacific, by the USA and France, and maybe others. The USA’s last test there was done in 1962. They continued doing stuff in Nevada till 1992. The French kept on testing at Mururoa until 1996, but as we know, the protests just kept growing and growing, and it all seems to have ground to a halt.
Jacinta: Never say never. So the Green Party in Germany were very anti-nuclear, and they forced an agreement with the government in 2000 to phase out nuclear energy by 2022. Later, Angela Merkel’s government managed to extend the phase-out date to 2034, but then Fukushima happened, and the date was put back again to 2022. They were on track to do that, but Putin’s invasion of Ukraine delayed it slightly. They’ve just closed the last nuclear power facility.
Canto: So, according to the SGU, Germany’s energy production spread in 2010 was 60% fossil fuels, 23% nuclear and 17% renewables. In 2022 it had changed to 51% fossil fuels, 6% nuclear and 43% renewables, which isn’t bad, but clearly if they hadn’t abandoned nuclear, that might’ve reduced the fossil fuel load by another 20% or so.
Jacinta: Lies lies and damn statistics. Shoulda-coulda-woulda. So, seriously, as Steve Novella points out in his SGU rant, we should be focussing on phasing out fossil fuels – coal first, as the dirtiest, then oil, then gas – and keeping nuclear going as a fairly long stop-gap in the medium term.
Canto: They’ve got a whole transcript of the podcast online, I’ve just discovered. And one of the points Novella makes is that you have to look at the path to achieving zero emissions. Germany already has the nuclear infrastructure, as do other European countries, such as Sweden (which almost went the way of Germany), so rebooting its nuclear facilities would be far less costly than starting from scratch as we’d be doing in Australia, where there’s absolutely no appetite for nuclear…
Jacinta: And we’re perfect for solar and storage, and offshore wind. Anyway, as a result of Germany’s decision it’s the third highest CO2 emitter in Europe, behind Poland and the Czech Republic, and the figures are extremement revealing. Germany releases 385 grammes of CO2 per kWh, compared to nuclear-powered France, at 85, and Sweden, which has a lot of hydro, at 45 – the lowest in Europe.
Canto: Tasmania, which is all hydro, boasts about its negative emissions, since it exports a proportion of its energy.
Jacinta: Italy is up at 372, having got rid of its nuclear generators.
Canto: Hell in a hand-basket.
Jacinta: So they describe nuclear as a bridging technology…
Canto: But what do they do with all the waste? Radioactivity and all?
Jacinta: Good question. A quick search turns up this:
Over 60,000 tons of spent nuclear fuel are stored across Europe (excluding Russia and Slovakia), most of which is in France. Within the EU, France accounts for 25 percent of the current spent nuclear fuel, followed by Germany (15 percent) and the United Kingdom (14 percent).
That’s from a ‘World Nuclear Waste Report’ in 2019, from an organisation called Focus Europe. They say that only Finland has ‘a permanent repository for the most dangerous type of waste’.
Canto: So, all the more reason to focus on renewables, but wth nuclear being a part of the mix for the foreseeable, storage is a big issue, and then there’s the Ukraine situation. ..
Jacinta: And a controversial situation in the Balkans, on the Croatia-Bosnia border, but you go first.
Canto: Well, we’re talking about the Zaporizhzhia plant in south-eastern Ukraine. The World Nuclear Association is presenting a timeline of all the distressing events from the start of the invasion to the present. Interestingly, Russia captured Chernobyl at the beginning of their invasion, but then thought better of it. Here’s how Wikipedia describes it:
During the 2022 Russian invasion of Ukraine, Chernobyl became the site of the Battle of Chernobyl and Russian forces captured the city on 24 February. After its capture, Ukrainian officials reported that the radiation levels started to rise due to recent military activity causing radioactive dust to ascend into the air. Hundreds of Russian soldiers were suffering from radiation poisoning after digging trenches in a contaminated area, and one died. On 31 March it was reported that Russian forces had left the exclusion zone. Ukrainian authorities reasserted control over the area on 2 April.
The whole Chernobyl debacle – it’s on the way to Kyiv, near the border with Belarus – is a prime example of Russian incompetence in this ‘special military operation’. As to Zaporizhzhia in the south-east, Europe’s largest nuclear power plant, the situation is very murky, with Russia claiming it has complete control of it and Ukraine emphatically denying this claim. It has been regularly shelled, presumably by the Russians, and nearby residents have been evacuated recently.
Jacinta: Yeah, here in Australia we never think of warfare being a threat to the nuclear industry, it goes to show, you never know. Of course power supplies will always be a target in war, but it’s extra problematic with nuclear power – why we shouldn’t rely on it, unless we went the bonobo way pretty damn soon re our social evolution… Yes, the Croatia-Bosnia issue is all about waste dumping. It’s not about warfare or anything, just increased tensions, and the general nimbyism that goes with all this, if that’s not being too dismissive. It’s Croatia that’s building the waste facility near the Bosnian border, and the worries are about public health, local agriculture and their river systems.
Canto: So to get back to the fossil fuel issue, because of increased energy demand overall – and that’ll continue for a good while – we’re releasing more CO2 into the atmosphere, at increasing rates, even while our percentage of energy demand that’s met by fossil fuels is going down. So, fat chance of reaching our targets – generally considered as no more than 1.5 degrees above pre-industrial temperatures by – whenever. Others are giving up on that and talking about 2 degrees, which many consider more or less catastrophic.
Jacinta: They say that currently 75% of the world’s energy comes from fossil fuels. Uhhh, that’s not an exact figure. And some fossil fuels are worse than others, as we’ve said.
Canto: And at this rate, our emissions will almost double by 2050. And battery electric, and hydrogen, will require more fossil fuel emissions to produce. Nuclear could be an option there, but it’s unlikely everyone’s going to get on board with nuclear.
Jacinta: And, as Steve Novella points out, all of these new renewable energy projects – wind and solar in particular – are involved in a backlog to get onto the grid. There just isn’t enough grid electricity to cover new projects, and upgrading the grid to cope with varied, and variable, forms of energy, is a major, time consuming project in itself. And that’s leaving aside all the political machinations going on, the vested interests and so forth. We’ve just recently allowed fracking to go ahead in the Northern Territory, and so it goes…
References
https://www.theskepticsguide.org/podcasts (episode 931)
https://en.wikipedia.org/wiki/British_nuclear_tests_at_Maralinga
https://en.wikipedia.org/wiki/Moruroa
https://www.sgutranscripts.org/wiki/SGU_Episode_931
https://www.abc.net.au/news/2023-05-03/nt-government-fracking-decision-beetaloo-basin-gas/102295762
an interminable conversation 12: more on hydrogen, and wondering about local power costs
filched from an anti-global warming dinosaur – all’s fair….
Jacinta: So we’ve learned a lot about the problems with hydrogen as a potential fuel, and its problems as a chemical, in the production of fertiliser, in the petrochemical industry, and the need to clean up such usage, for example the contribution of ‘fugitive methane’ to carbon emissions. We also learned that carbon capture and storage, mooted for decades, seems to be going nowhere, largely due to its unprofitability re the private sector…
Canto: So now we’re going to listen to Rosie Barnes, of “Engineering with Rosie”, at a Hydrogen Online Conference, one of many interactive conferences apparently being planned. I’ve heard Rosie before, expressing some skepticism about hydrogen in general, so I’m surprised that she’s prepared to enter the ‘lion’s den’ of what I naturally presume to be hydrogen advocacy.
Jacinta: Yes I’m not sure I want to listen to the post-talk interactive session of this video, as I’m a bit squeamish about confrontation. Why can’t everybody just be nice and agree about everything?!
Canto: Yeah well Rosie begins with the question – which hydrogen projects should we prioritise? And she also mentions the hydrogen energy supply chain, which is apparently a liquid hydrogen transport project between Australia and Japan, about which I know nothing.
Jacinta: Though actually we did write about this before, in a piece that now seems haplessly naive (linked below, FWIW). Anyway, the ScienceDirect website has this ‘headline’ in its overview of liquid hydrogen:
Production of liquid hydrogen or liquefaction is an energy-intensive process, typically requiring amounts of energy equal to about one-third of the energy in liquefied hydrogen.
which don’t sound promising.
Canto: But Rosie seems to think the hydrogen future is a bit more rosy these days. Another focus of her talk will be ‘giga projects’, presumably meaning ginormous projects, such as the ‘Asian renewable energy hub’ and the ‘western green energy hub’, about which more research is needed – by us.
Jacinta: So she was hearing a lot of hype, mainly from politicians, a couple of years ago, about all sorts of hydrogen ‘applications’, but mainly about ‘power system balancing’, which hopefully we’ll hear more about – maybe to do with balancing for the variability of wind and solar – and for vehicular transport. And clearly she didn’t get it, especially in respect of other applications, no doubt, such as home heating. I mean, why hydrogen?
Canto: Indeed. She identified four red flags at the outset – and we need to dig deeper into these. First, ‘will developers keep building wind and solar if prices are negative?’ I don’t know what that means…
Jacinta: Economics is definitely not our strong suit. Actually we don’t have a strong suit. So here’s Wikipedia:
In economics, negative pricing can occur when demand for a product drops or supply increases to an extent that owners or suppliers are prepared to pay others to accept it, in effect setting the price to a negative number. This can happen because it costs money to transport, store, and dispose of a product even when there is little demand to buy it.
Canto: So it’s not immediately clear what that has to do with hydrogen, but let’s mention the other 3 red flags: 2 – will negative electricity prices persist? 3 – round trip efficiency, and 4 – the head start for and rapid improvement of other renewable technologies. Just putting those out there for now.
Jacinta: The questionable nature of the first one is – if electricity production becomes virtually free (negative pricing) then hydrogen production will be virtually free too, using renewables. I think. So the first two red flags are clearly connected. Businesses need to be profitable, so they won’t build (wind or solar) if there’s no market or if the market is saturated. With green hydrogen anyway, the production costs are, or have been quite extreme and those costs would have to come down by a factor of three to be equivalent to ‘dirty’ hydrogen production, to say nothing of cheaper electricity competing for the grid. To wait for the energy to be ‘negatively priced’ and only then use it for electrolysis seemed risky and possibly unworkable. A lot of equipment, etc, for little return.
Canto: Much of this was looking back at 2020 – not so long ago – and looking to Germany as an example of a highly renewable grid, but now she considers our Australian state – South Australia, which produces a lot of wind, first, and solar, second. Over the past 12 months, 65% or so of our grid electricity has been from renewables. Largely wind and solar, rather than base-load renewables (meaning nuclear perhaps, in the case of Germany?)
Jacinta: Yes, presumably nuclear, also hydro could be base load, as presumably it is in Tasmania. Rosie mentioned that we don’t have a lot of geothermal, and that rather shocked me, as I thought there wasn’t much geothermal anywhere, that it was one of those eternally future technologies….
Canto: The USA’s EIA (Energy Information Administration) tells us more:
The most active geothermal resources are usually found along major tectonic plate boundaries where most volcanoes are located. One of the most active geothermal areas in the world is called the Ring of Fire, which encircles the Pacific Ocean.
Most of the geothermal power plants in the United States are in western states and Hawaii, where geothermal energy resources are close to the earth’s surface. California generates the most electricity from geothermal energy. The Geysers dry steam reservoir in Northern California is the largest known dry steam field in the world and has been producing electricity since 1960.
Jacinta: Well, thanks for that. Something new every day…
Canto: So Rosie tells us we have had persistent negative electricity prices in SA – which is interesting considering that our household bills are painfully high. She presents a couple of graphics that I don’t fully understand… I certainly can’t understand negative pricing. Clearly not talking about consumers…
Jacinta: I’d like to know why our electricity costs are so high. Right now please. We can get back to Rosie later.
Canto: Well it’s a worthwhile detour to pursue, but it’ll require a bit of research. So maybe next time. So having watched Rosie’s not-so-rosey presentation, without watching the Q & A, because I tend to be a bit squeamish about that format, I find myself wondering…. there was little mention of Prof Cebon’s concerns about the questionable future of blue hydrogen and CCS, or of the problem of fugitive methane in the production of hydrogen from natural gas, or of the obvious failure in the take-up of hydrogen for passenger transport, or of the cost and difficult logistics of hydrogen compression and transport. And as to its possible use in storage, the battery solution seems more likely, surely?
Jacinta: She did point out, either in this talk or her earlier one, that hydrogen often looks like a solution looking for a problem, and this seems surely to be the case for hydrogen fuel-cell vehicles. It seems that EVs have won that race, and the improvements continue to be rapid. Well, we might pursue the hydrogen issue, and why so many people are hooked on hydrogen, and the details of hydrogen production, and many other issues relating to renewables, for a while yet, but let’s have a look at the cost of energy here in South Australia, where rooftop solar is very popular, and wind farms are kicking up a storm, but our electricity bills are still painfully high….
References
https://www.sciencedirect.com/topics/engineering/liquid-hydrogen