By Jeremy Lent
Imagine you're driving your shiny new car too fast along a wet, curvy road. You turn a corner and realize you're heading straight for a crowd of pedestrians. If you slam on your brakes, you'd probably skid and damage your car. So you keep your foot on the accelerator, heading straight for the crowd, knowing they'll be killed and maimed, but if you keep driving fast enough no-one will be able to catch you and you might just get away scot-free.
Of course, that's monstrous behavior and I expect you'd never make that decision. But it's a decision the developed world is collectively taking in the face of the global catastrophe that will arise from climate change.
With daily headlines pivoting from the unparalleled flooding from Harvey in Houston to the devastation caused by Irma in Florida, it might seem like the U.S. has its hands full just dealing with our own climate emergencies. In the short term, that's true. Harvey is estimated to have caused $180 billion of destruction, damaging some 200,000 homes, while Irma's havoc is still being assessed.
But meanwhile, multiply the damage from Harvey and Irma a hundredfold and you'll get a feeling for the climate-related suffering taking place right now in the rest of the world. In India, Bangladesh and Nepal, an estimated 40 million people have been affected by massive flooding, with more than 1,200 deaths. More than one third of Bangladesh's land mass has been submerged. As if that's not enough, Africa has been suffering its own under-reported climate disasters, with hundreds of thousands affected by flooding in Nigeria, Niger, Congo, Sierra Leone and Uganda.
Although the regime in the White House is doing its best to ignore it, these global weather extremes are clearly exacerbated by climate change, and have been predicted by climate scientists for decades. What is so disturbing is that we're experiencing this wave of disasters at a global temperature roughly 1°C above historic norms. It's a virtual certainty that we're going to hit 1.5° before long—perhaps in the next ten years—and unless we do something drastic to transform our fossil fuel-based society, we could be hitting 2°C as early as 2036. By the end of the century—when half the babies born this year should still be alive—conservative estimates have global temperatures hitting 3.3°C above baseline, based on the commitments that formed the 2015 Paris agreement at COP21. And that's not including potentially devastating feedback effects such as methane leaking from permafrost, which could lead to temperatures way higher, causing an earth that would literally be uninhabitable for humans in many regions.
The likely effects on our civilization are dreadful to contemplate. Because most cities have grown up around oceans, half the world's population currently lives within fifteen miles of the coast. The devastation we've been seeing from flooding and storm surges offers only a hint of the impending catastrophe. In the Global South, beleaguered by massive poverty and inadequate infrastructure, cities will be overwhelmed. Reduction in river flows and falling groundwater tables will lead to widespread shortages of potable water. Flooding and landslides will disrupt electricity, sanitation and transportation systems, all of which will lead to rampant infectious disease. Meanwhile, even as these cities strain beyond breaking point, devastating droughts will cause agricultural systems to collapse, forcing millions of starving refugees into the cities from rural areas.
Eventually, even the most strident climate denialists will have to adjust to the facts raining down from the sky. Even Rush Limbaugh was forced to evacuate his Palm Beach home after claiming Irma was a conspiracy. But when they do, you can guarantee their response will be parochial. Wealthier cities will begin massive investments in building barricades, improving infrastructure, even moving to higher land, to defend themselves against the climate cataclysm. That's known in climate change circles as "adaptation." In more rational parts of the rich world, cities such as London and Rotterdam are already doing it.
However, effective adaptation isn't an option for the megacities of the Global South, which are already floundering from inadequate resources, and where hundreds of millions are forced to subsist, undernourished and vulnerable, in shanty towns. A central part of the Paris agreement, which Trump recently rejected, was a Green Climate Fund that is supposed to receive $100 billion annually by 2020 from developed countries to aid the rest of the world in mitigating and adapting to climate change. So far, only $10 billion has been pledged, $3 billion of which is the U.S. portion that Trump has vowed not to increase. It's hard to see even a small fraction of that $100 billion annual payment actually coming through.
Yet it's the developed world that created this climate mess in the first place. With just 15 percent of the world's population, developed countries have been responsible for 58 percent of human-caused greenhouse gases. All that fossil fuel energy is what permitted them to industrialize and thus become "developed," to the point that they're now consuming 80 percent of the world's resources, leaving the poorest three billion in the Global South to survive on less than $2 per day. That doesn't leave much change for climate adaptation.
That's why the inadequate response of the rich world to climate disruption is like that driver choosing to plunge straight into the crowd rather than swerving and risk damaging their shiny new car. What would it take to put the brakes on in time to avoid climate catastrophe?
There is hopeful news about the spectacular rise of renewables, surprising experts with the speed with which they are replacing fossil fuels around the world. But while that's an essential part of a solution, modern renewables still account for just 10 percent of global energy production, which in turn contributes no more than 25 percent of total greenhouse emissions. Halting the slide to disaster requires something far more extensive: a complete transformation of our current economic system.
After Pearl Harbor, when the U.S. faced an existential threat, President Roosevelt announced a military production plan to Congress and the American people that seemed unachievable. Yet, not only did the country meet those plans, it overshot them as a result of the wholesale transformation of society towards a single goal. This kind of mobilization is what would be required today to avoid the worst outcomes of climate change: a Climate Mobilization.
In this case, though, it's a different kind of mobilization that's required. The threat we're facing comes, not from enemies at war with us, but from the results of an economic system designed to exploit the earth and the most vulnerable humans living on it at an ever-increasing pace. As long as we measure ourselves and others by how much we consume, we're complicit in fueling the global system that's rapaciously devouring the earth.
The good news is that there's a short window of time when a fundamental shift in our economic, social and political priorities could still prevent global catastrophe. Alternative economic models exist that offer ways to conduct commerce sustainably. Ultimately, a flourishing future requires moving away from the growth-based, consumption-obsessed values of global capitalism, and toward a quality-oriented approach that could allow all of us to live on the earth in dignity. It's even possible to draw down much of the carbon that's already been emitted—the potential is there but it requires a choice to be made: a shift in our society's values toward caring for others alive right now, and for future generations.
Will there be enough collective willpower to act and transform our society before it's too late? That depends on the lessons learned from Harvey, Irma and the climate disasters still to come. Suppose, as you're racing toward that crowd in the road, that you managed to brake in time, get out of the car and join them. And then imagine your surprise when you discover the road you were speeding on came to an abrupt end around the next curve and was leading you directly off the precipice. Ultimately, the climate catastrophe we're ignoring will become all humanity's catastrophe unless we start acting on it now.
Reposted with permission from our media associate Common Dreams.
By Dana M Bergstrom, Euan Ritchie, Lesley Hughes and Michael Depledge
In 1992, 1,700 scientists warned that human beings and the natural world were "on a collision course." Seventeen years later, scientists described planetary boundaries within which humans and other life could have a "safe space to operate." These are environmental thresholds, such as the amount of carbon dioxide in the atmosphere and changes in land use.
The Good and Bad News<p><span>Ecosystems consist of living and non-living components, and their interactions. They work like a super-complex engine: when some components are removed or stop working, knock-on consequences can lead to system failure.</span></p><p>Our study is based on measured data and observations, not modeling or predictions for the future. Encouragingly, not all ecosystems we examined have collapsed across their entire range. We still have, for instance, some intact reefs on the Great Barrier Reef, especially in deeper waters. And northern Australia has some of the most intact and least-modified stretches of savanna woodlands on Earth.</p><p><span>Still, collapses are happening, including in regions critical for growing food. This includes the </span><a href="https://www.mdba.gov.au/importance-murray-darling-basin/where-basin" target="_blank" rel="noopener noreferrer">Murray-Darling Basin</a><span>, which covers around 14% of Australia's landmass. Its rivers and other freshwater systems support more than </span><a href="https://www.abs.gov.au/ausstats/[email protected]/latestproducts/94F2007584736094CA2574A50014B1B6?opendocument" target="_blank" rel="noopener noreferrer">30% of Australia's food</a><span> production.</span></p><p><span></span><span>The effects of floods, fires, heatwaves and storms do not stop at farm gates; they're felt equally in agricultural areas and natural ecosystems. We shouldn't forget how towns ran out of </span><a href="https://www.mdba.gov.au/issues-murray-darling-basin/drought#effects" target="_blank" rel="noopener noreferrer">drinking water</a><span> during the recent drought.</span></p><p><span></span><span>Drinking water is also at risk when ecosystems collapse in our water catchments. In Victoria, for example, the degradation of giant </span><a href="https://theconversation.com/logging-must-stop-in-melbournes-biggest-water-supply-catchment-106922" target="_blank" rel="noopener noreferrer">Mountain Ash forests</a><span> greatly reduces the amount of water flowing through the Thompson catchment, threatening nearly five million people's drinking water in Melbourne.</span></p><p>This is a dire <em data-redactor-tag="em">wake-up</em> call — not just a <em data-redactor-tag="em">warning</em>. Put bluntly, current changes across the continent, and their potential outcomes, pose an existential threat to our survival, and other life we share environments with.</p><p><span>In investigating patterns of collapse, we found most ecosystems experience multiple, concurrent pressures from both global climate change and regional human impacts (such as land clearing). Pressures are often </span><a href="https://besjournals.onlinelibrary.wiley.com/doi/abs/10.1111/1365-2664.13427" target="_blank" rel="noopener noreferrer">additive and extreme</a><span>.</span></p><p>Take the last 11 years in Western Australia as an example.</p><p>In the summer of 2010 and 2011, a <a href="https://theconversation.com/marine-heatwaves-are-getting-hotter-lasting-longer-and-doing-more-damage-95637" target="_blank" rel="noopener noreferrer">heatwave</a> spanning more than 300,000 square kilometers ravaged both marine and land ecosystems. The extreme heat devastated forests and woodlands, kelp forests, seagrass meadows and coral reefs. This catastrophe was followed by two cyclones.</p><p>A record-breaking, marine heatwave in late 2019 dealt a further blow. And another marine heatwave is predicted for <a href="https://www.theguardian.com/environment/2020/dec/24/wa-coastline-facing-marine-heatwave-in-early-2021-csiro-predicts" target="_blank" rel="noopener noreferrer">this April</a>.</p>
What to Do About It?<p><span>Our brains trust comprises 38 experts from 21 universities, CSIRO and the federal Department of Agriculture Water and Environment. Beyond quantifying and reporting more doom and gloom, we asked the question: what can be done?</span></p><p>We devised a simple but tractable scheme called the 3As:</p><ul><li>Awareness of what is important</li><li>Anticipation of what is coming down the line</li><li>Action to stop the pressures or deal with impacts.</li></ul><p>In our paper, we identify positive actions to help protect or restore ecosystems. Many are already happening. In some cases, ecosystems might be better left to recover by themselves, such as coral after a cyclone.</p><p>In other cases, active human intervention will be required – for example, placing artificial nesting boxes for Carnaby's black cockatoos in areas where old trees have been <a href="https://www.environment.gov.au/biodiversity/threatened/publications/factsheet-carnabys-black-cockatoo-calyptorhynchus-latirostris" target="_blank" rel="noopener noreferrer">removed</a>.</p><p><span>"Future-ready" actions are also vital. This includes reinstating </span><a href="https://www.abc.net.au/gardening/factsheets/a-burning-question-fire/12395700" target="_blank" rel="noopener noreferrer">cultural burning practices</a><span>, which have </span><a href="https://theconversation.com/australia-you-have-unfinished-business-its-time-to-let-our-fire-people-care-for-this-land-135196" target="_blank" rel="noopener noreferrer">multiple values and benefits for Aboriginal communities</a><span> and can help minimize the risk and strength of bushfires.</span></p><p>It might also include replanting banks along the Murray River with species better suited to <a href="https://www.abc.net.au/gardening/factsheets/my-garden-path---matt-hansen/12322978" target="_blank" rel="noopener noreferrer">warmer conditions</a>.</p><p>Some actions may be small and localized, but have substantial positive benefits.</p><p>For example, billions of migrating Bogong moths, the main summer food for critically endangered mountain pygmy possums, have not arrived in their typical numbers in Australian alpine regions in recent years. This was further exacerbated by the <a href="https://theconversation.com/six-million-hectares-of-threatened-species-habitat-up-in-smoke-129438" target="_blank" rel="noopener noreferrer">2019-20</a> fires. Brilliantly, <a href="https://www.zoo.org.au/" target="_blank" rel="noopener noreferrer">Zoos Victoria</a> anticipated this pressure and developed supplementary food — <a href="https://theconversation.com/looks-like-an-anzac-biscuit-tastes-like-a-protein-bar-bogong-bikkies-help-mountain-pygmy-possums-after-fire-131045" target="_blank" rel="noopener noreferrer">Bogong bikkies</a>.</p><p><span>Other more challenging, global or large-scale actions must address the </span><a href="https://www.youtube.com/watch?v=iICpI9H0GkU&t=34s" target="_blank" rel="noopener noreferrer">root cause of environmental threats</a><span>, such as </span><a href="https://www.nature.com/articles/s41559-018-0504-8" target="_blank" rel="noopener noreferrer">human population growth and per-capita consumption</a><span> of environmental resources.</span><br></p><p>We must rapidly reduce greenhouse gas emissions to net-zero, remove or suppress invasive species such as <a href="https://onlinelibrary.wiley.com/doi/abs/10.1111/mam.12080" target="_blank" rel="noopener noreferrer">feral cats</a> and <a href="https://theconversation.com/the-buffel-kerfuffle-how-one-species-quietly-destroys-native-wildlife-and-cultural-sites-in-arid-australia-149456" target="_blank" rel="noopener noreferrer">buffel grass</a>, and stop widespread <a href="https://theconversation.com/to-reduce-fire-risk-and-meet-climate-targets-over-300-scientists-call-for-stronger-land-clearing-laws-113172" target="_blank" rel="noopener noreferrer">land clearing</a> and other forms of habitat destruction.</p>
Our Lives Depend On It<p>The multiple ecosystem collapses we have documented in Australia are a harbinger for <a href="https://www.iucn.org/news/protected-areas/202102/natures-future-our-future-world-speaks" target="_blank">environments globally</a>.</p><p>The simplicity of the 3As is to show people <em>can</em> do something positive, either at the local level of a landcare group, or at the level of government departments and conservation agencies.</p><p>Our lives and those of our <a href="https://theconversation.com/children-are-our-future-and-the-planets-heres-how-you-can-teach-them-to-take-care-of-it-113759" target="_blank">children</a>, as well as our <a href="https://theconversation.com/taking-care-of-business-the-private-sector-is-waking-up-to-natures-value-153786" target="_blank" rel="noopener noreferrer">economies</a>, societies and <a href="https://theconversation.com/to-address-the-ecological-crisis-aboriginal-peoples-must-be-restored-as-custodians-of-country-108594" target="_blank" rel="noopener noreferrer">cultures</a>, depend on it.</p><p>We simply cannot afford any further delay.</p><p><em><a rel="noopener noreferrer" href="https://theconversation.com/profiles/dana-m-bergstrom-1008495" target="_blank" style="">Dana M Bergstrom</a> is a principal research scientist at the University of Wollongong. <a rel="noopener noreferrer" href="https://theconversation.com/profiles/euan-ritchie-735" target="_blank" style="">Euan Ritchie</a> is a professor in Wildlife Ecology and Conservation, Centre for Integrative Ecology, School of Life & Environmental Sciences at Deakin University. <a rel="noopener noreferrer" href="https://theconversation.com/profiles/lesley-hughes-5823" target="_blank">Lesley Hughes</a> is a professor at the Department of Biological Sciences at Macquarie University. <a rel="noopener noreferrer" href="https://theconversation.com/profiles/michael-depledge-114659" target="_blank">Michael Depledge</a> is a professor and chair, Environment and Human Health, at the University of Exeter. </em></p><p><em>Disclosure statements: Dana Bergstrom works for the Australian Antarctic Division and is a Visiting Fellow at the University of Wollongong. Her research including fieldwork on Macquarie Island and in Antarctica was supported by the Australian Antarctic Division.</em></p><p><em>Euan Ritchie receives funding from the Australian Research Council, The Australia and Pacific Science Foundation, Australian Geographic, Parks Victoria, Department of Environment, Land, Water and Planning, and the Bushfire and Natural Hazards CRC. Euan Ritchie is a Director (Media Working Group) of the Ecological Society of Australia, and a member of the Australian Mammal Society.</em></p><p><em>Lesley Hughes receives funding from the Australian Research Council. She is a Councillor with the Climate Council of Australia, a member of the Wentworth Group of Concerned Scientists and a Director of WWF-Australia.</em></p><p><em>Michael Depledge does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond their academic appointment.</em></p><p><em>Reposted with permission from <a href="https://theconversation.com/existential-threat-to-our-survival-see-the-19-australian-ecosystems-already-collapsing-154077" target="_blank" style="">The Conversation</a>. </em></p>
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