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Wednesday, January 1, 2014

Is Earth F**ked? Dynamical Futility of Global Environmental Management and Possibilities for Sustainability via Direct Action Activism





Naomi Klein: How science is telling us all to revolt

Is our relentless quest for economic growth killing the planet? Climate scientists have seen the data – and they are coming to some incendiary conclusions.





Texas.

Waste land: large-scale irrigation strips nutrients from the soil, scars the landscape and could alter climatic conditions beyond repair. Image: Edward Burtynsky, courtesy Nicholas Metivier Gallery, Toronto/ Flowers, London, Pivot Irrigation #11 High Plains, Texas Panhandle, USA (2011) 



In December 2012, a pink-haired complex systems researcher named Brad Werner made his way through the throng of 24,000 earth and space scientists at the Fall Meeting of the American Geophysical Union, held annually in San Francisco. This year’s conference had some big-name participants, from Ed Stone of Nasa’s Voyager project, explaining a new milestone on the path to interstellar space, to the film-maker James Cameron, discussing his adventures in deep-sea submersibles.

But it was Werner’s own session that was attracting much of the buzz. It was titled “Is Earth F**ked?” (full title: “Is Earth F**ked? Dynamical Futility of Global Environmental Management and Possibilities for Sustainability via Direct Action Activism”).

Standing at the front of the conference room, the geophysicist from the University of California, San Diego walked the crowd through the advanced computer model he was using to answer that question. He talked about system boundaries, perturbations, dissipation, attractors, bifurcations and a whole bunch of other stuff largely incomprehensible to those of us uninitiated in complex systems theory. But the bottom line was clear enough: global capitalism has made the depletion of resources so rapid, convenient and barrier-free that “earth-human systems” are becoming dangerously unstable in response. When pressed by a journalist for a clear answer on the “are we f**ked” question, Werner set the jargon aside and replied, “More or less.”


There was one dynamic in the model, however, that offered some hope. Werner termed it “resistance” – movements of “people or groups of people” who “adopt a certain set of dynamics that does not fit within the capitalist culture”. According to the abstract for his presentation, this includes “environmental direct action, resistance taken from outside the dominant culture, as in protests, blockades and sabotage by indigenous peoples, workers, anarchists and other activist groups”.

Serious scientific gatherings don’t usually feature calls for mass political resistance, much less direct action and sabotage. But then again, Werner wasn’t exactly calling for those things. He was merely observing that mass uprisings of people – along the lines of the abolition movement, the civil rights movement or Occupy Wall Street – represent the likeliest source of “friction” to slow down an economic machine that is careening out of control. We know that past social movements have “had tremendous influence on . . . how the dominant culture evolved”, he pointed out. So it stands to reason that, “if we’re thinking about the future of the earth, and the future of our coupling to the environment, we have to include resistance as part of that dynamics”. And that, Werner argued, is not a matter of opinion, but “really a geophysics problem”.

Plenty of scientists have been moved by their research findings to take action in the streets. Physicists, astronomers, medical doctors and biologists have been at the forefront of movements against nuclear weapons, nuclear power, war, chemical contamination and creationism. And in November 2012, Nature published a commentary by the financier and environmental philanthropist Jeremy Grantham urging scientists to join this tradition and “be arrested if necessary”, because climate change “is not only the crisis of your lives – it is also the crisis of our species’ existence”.

Some scientists need no convincing. The godfather of modern climate science, James Hansen, is a formidable activist, having been arrested some half-dozen times for resisting mountain-top removal coal mining and tar sands pipelines (he even left his job at Nasa this year in part to have more time for campaigning). Two years ago, when I was arrested outside the White House at a mass action against the Keystone XL tar sands pipeline, one of the 166 people in cuffs that day was a glaciologist named Jason Box, a world-renowned expert on Greenland’s melting ice sheet.

 “I couldn’t maintain my self-respect if I didn’t go,” Box said at the time, adding that “just voting doesn’t seem to be enough in this case. I need to be a citizen also.”

This is laudable, but what Werner is doing with his modelling is different. He isn’t saying that his research drove him to take action to stop a particular policy; he is saying that his research shows that our entire economic paradigm is a threat to ecological stability. And indeed that challenging this economic paradigm – through mass-movement counter-pressure – is humanity’s best shot at avoiding catastrophe.

That’s heavy stuff. But he’s not alone. Werner is part of a small but increasingly influential group of scientists whose research into the destabilisation of natural systems – particularly the climate system – is leading them to similarly transformative, even revolutionary, conclusions. And for any closet revolutionary who has ever dreamed of overthrowing the present economic order in favour of one a little less likely to cause Italian pensioners to hang themselves in their homes, this work should be of particular interest. Because it makes the ditching of that cruel system in favour of something new (and perhaps, with lots of work, better) no longer a matter of mere ideological preference but rather one of species-wide existential necessity.

Leading the pack of these new scientific revolutionaries is one of Britain’s top climate experts, Kevin Anderson, the deputy director of the Tyndall Centre for Climate Change Research, which has quickly established itself as one of the UK’s premier climate research institutions. Addressing everyone from the Department for International Development to Manchester City Council, Anderson has spent more than a decade patiently translating the implications of the latest climate science to politicians, economists and campaigners. In clear and understandable language, he lays out a rigorous road map for emissions reduction, one that provides a decent shot at keeping global temperature rise below 2° Celsius, a target that most governments have determined would stave off catastrophe.

But in recent years Anderson’s papers and slide shows have become more alarming. Under titles such as “Climate Change: Going Beyond Dangerous . . . Brutal Numbers and Tenuous Hope”, he points out that the chances of staying within anything like safe temperature levels are diminishing fast.

With his colleague Alice Bows, a climate mitigation expert at the Tyndall Centre, Anderson points out that we have lost so much time to political stalling and weak climate policies – all while global consumption (and emissions) ballooned – that we are now facing cuts so drastic that they challenge the fundamental logic of prioritising GDP growth above all else.

Anderson and Bows inform us that the often-cited long-term mitigation target – an 80 per cent emissions cut below 1990 levels by 2050 – has been selected purely for reasons of political expediency and has “no scientific basis”. That’s because climate impacts come not just from what we emit today and tomorrow, but from the cumulative emissions that build up in the atmosphere over time. And they warn that by focusing on targets three and a half decades into the future – rather than on what we can do to cut carbon sharply and immediately – there is a serious risk that we will allow our emissions to continue to soar for years to come, thereby blowing through far too much of our 2° “carbon budget” and putting ourselves in an impossible position later in the century.

Which is why Anderson and Bows argue that, if the governments of developed countries are serious about hitting the agreed upon international target of keeping warming below 2° Celsius, and if reductions are to respect any kind of equity principle (basically that the countries that have been spewing carbon for the better part of two centuries need to cut before the countries where more than a billion people still don’t have electricity), then the reductions need to be a lot deeper, and they need to come a lot sooner.

To have even a 50/50 chance of hitting the 2° target (which, they and many others warn, already involves facing an array of hugely damaging climate impacts), the industrialised countries need to start cutting their greenhouse-gas emissions by something like 10 per cent a year – and they need to start right now. But Anderson and Bows go further, pointing out that this target cannot be met with the array of modest carbon pricing or green-tech solutions usually advocated by big green groups. These measures will certainly help, to be sure, but they are simply not enough: a 10 per cent drop in emissions, year after year, is virtually unprecedented since we started powering our economies with coal. In fact, cuts above 1 per cent per year “have historically been associated only with economic recession or upheaval”, as the economist Nicholas Stern put it in his 2006 report for the British government.

 Even after the Soviet Union collapsed, reductions of this duration and depth did not happen (the former Soviet countries experienced average annual reductions of roughly 5 per cent over a period of ten years). They did not happen after Wall Street crashed in 2008 (wealthy countries experienced about a 7 per cent drop between 2008 and 2009, but their CO2 emissions rebounded with gusto in 2010 and emissions in China and India had continued to rise). Only in the immediate aftermath of the great market crash of 1929 did the United States, for instance, see emissions drop for several consecutive years by more than 10 per cent annually, according to historical data from the Carbon Dioxide Information Analysis Centre. But that was the worst economic crisis of modern times.

If we are to avoid that kind of carnage while meeting our science-based emissions targets, carbon reduction must be managed carefully through what Anderson and Bows describe as “radical and immediate de-growth strategies in the US, EU and other wealthy nations”. Which is fine, except that we happen to have an economic system that fetishises GDP growth above all else, regardless of the human or ecological consequences, and in which the neoliberal political class has utterly abdicated its responsibility to manage anything (since the market is the invisible genius to which everything must be entrusted).

So what Anderson and Bows are really saying is that there is still time to avoid catastrophic warming, but not within the rules of capitalism as they are currently constructed. Which may be the best argument we have ever had for changing those rules.

In a 2012 essay that appeared in the influential scientific journal Nature Climate Change, Anderson and Bows laid down something of a gauntlet, accusing many of their fellow scientists of failing to come clean about the kind of changes that climate change demands of humanity. On this it is worth quoting the pair at length:

 . . . in developing emission scenarios scientists repeatedly and severely underplay the implications of their analyses. When it comes to avoiding a 2°C rise, “impossible” is translated into “difficult but doable”, whereas “urgent and radical” emerge as “challenging” – all to appease the god of economics (or, more precisely, finance). For example, to avoid exceeding the maximum rate of emission reduction dictated by economists, “impossibly” early peaks in emissions are assumed, together with naive notions about “big” engineering and the deployment rates of low-carbon infrastructure. More disturbingly, as emissions budgets dwindle, so geoengineering is increasingly proposed to ensure that the diktat of economists remains unquestioned.

In other words, in order to appear reasonable within neoliberal economic circles, scientists have been dramatically soft-peddling the implications of their research. By August 2013, Anderson was willing to be even more blunt, writing that the boat had sailed on gradual change. “Perhaps at the time of the 1992 Earth Summit, or even at the turn of the millennium, 2°C levels of mitigation could have been achieved through significant evolutionary changes within the political and economic hegemony. But climate change is a cumulative issue! Now, in 2013, we in high-emitting (post-)industrial nations face a very different prospect. Our ongoing and collective carbon profligacy has squandered any opportunity for the ‘evolutionary change’ afforded by our earlier (and larger) 2°C carbon budget. Today, after two decades of bluff and lies, the remaining 2°C budget demands revolutionary change to the political and economic hegemony” (his emphasis).

We probably shouldn’t be surprised that some climate scientists are a little spooked by the radical implications of even their own research. Most of them were just quietly doing their work measuring ice cores, running global climate models and studying ocean acidification, only to discover, as the Australian climate expert and author Clive Hamilton puts it, that they “were unwittingly destabilising the political and social order”.

But there are many people who are well aware of the revolutionary nature of climate science. It’s why some of the governments that decided to chuck their climate commitments in favour of digging up more carbon have had to find ever more thuggish ways to silence and intimidate their nations’ scientists. In Britain, this strategy is becoming more overt, with Ian Boyd, the chief scientific adviser at the Department for Environment, Food and Rural Affairs, writing recently that scientists should avoid “suggesting that policies are either right or wrong” and should express their views “by working with embedded advisers (such as myself), and by being the voice of reason, rather than dissent, in the public arena”.

If you want to know where this leads, check out what’s happening in Canada, where I live. The Conservative government of Stephen Harper has done such an effective job of gagging scientists and shutting down critical research projects that, in July 2012, a couple thousand scientists and supporters held a mock-funeral on Parliament Hill in Ottawa, mourning “the death of evidence”. Their placards said, “No Science, No Evidence, No Truth”.

But the truth is getting out anyway. The fact that the business-as-usual pursuit of profits and growth is destabilising life on earth is no longer something we need to read about in scientific journals. The early signs are unfolding before our eyes. And increasing numbers of us are responding accordingly: blockading fracking activity in Balcombe; interfering with Arctic drilling preparations in Russian waters (at tremendous personal cost); taking tar sands operators to court for violating indigenous sovereignty; and countless other acts of resistance large and small. In Brad Werner’s computer model, this is the “friction” needed to slow down the forces of destabilisation; the great climate campaigner Bill McKibben calls it the “antibodies” rising up to fight the planet’s “spiking fever”.

It’s not a revolution, but it’s a start. And it might just buy us enough time to figure out a way to live on this planet that is distinctly less f**ked.

Naomi Klein, the author of “The Shock Doctrine” and “No Logo”, is working on a book and a film about the revolutionary power of climate change. You call follow her on twitter @naomiaklein
Tags: Russell Brand guest edit     

Global Warning




Global Warning

This epic human journey of ours is about to enter a 10,000 year Dark Age.

 
 

 

You’re in denial. You don’t need yet another convincing argument, you need a sledge hammer.


Help us. We’re on a mission. To wake up the zombie masses from their consumerist, cyber, capitalist stupor to the perils our Earth is facing. We’re working on a series of fierce 15-second mind-bombs that will go viral on YouTube and air hundreds of times on TV channels across the world. This wake up call is designed to leaves everyone who sees it transformed . . . unable to return to a life of ecological amnesia. We hope to trigger a monumental mind shift in the way humanity thinks about climate change and the possibility that our current capitalist system will crash and bring down civilization as we know it . . . unless . . . we resist.

Discussing geophysicist Brad Werner’s now-famous research paper, Is Earth f**ked?, Naomi Klein writes: “the bottom line [is] clear enough: global capitalism has made the depletion of resources so rapid, convenient and barrier-free that ‘earth-human systems’ are becoming dangerously unstable in response. When [Werner was] pressed by a journalist for a clear answer on the “are we f**ked” question, Werner set the jargon aside and replied, ‘More or less.’” . . . BUT, Klein continues . . .
There is one dynamic in the model, however, that offered some hope. Werner terms it “resistance” – movements of “people or groups of people” who “adopt a certain set of dynamics that does not fit within the capitalist culture.” According to the abstract for his presentation, this includes “environmental direct action, resistance taken from outside the dominant culture, as in protests, blockades and sabotage by indigenous peoples, workers, anarchists and other activist groups.”
Help us launch this Global Warning campaign . . . a surefire chink in the doomsday system! Email kono@adbusters.org if you are interested in brainstorming or possibly funding this Global warning campaign that could change the course of human history!

Denying Climate Change Is Worse Than Spreading the Usual Kind of Conspiracy Theory - It Costs Lives



uk-politics






Mehdi Hasan

Climate Change Worse Than We Thought, Likely To Be 'Catastrophic Rather Than Simply Dangerous'



politics


Climate Change Worse Than We Thought, Likely To Be 'Catastrophic Rather Than Simply Dangerous'

The Huffington Post  |  By Posted:

Climate Change worse


Climate change may be far worse than scientists thought, causing global temperatures to rise by at least 4 degrees Celsius by 2100, or about 7.2 degrees Fahrenheit, according to a new study.

The study, published in the journal Nature, takes a fresh look at clouds' effect on the planet, according to a report by The Guardian. The research found that as the planet heats, fewer sunlight-reflecting clouds form, causing temperatures to rise further in an upward spiral.

That number is double what many governments agree is the threshold for dangerous warming. Aside from dramatic environmental shifts like melting sea ice, many of the ills of the modern world -- starvation, poverty, war and disease -- are likely to get worse as the planet warms.
"4C would likely be catastrophic rather than simply dangerous," lead researcher Steven Sherwood told the Guardian. "For example, it would make life difficult, if not impossible, in much of the tropics, and would guarantee the eventual melting of the Greenland ice sheet and some of the Antarctic ice sheet."

Another report released earlier this month said the abrupt changes caused by rapid warming should be cause for concern, as many of climate change's biggest threats are those we aren't ready for.
In September, the Intergovernmental Panel on Climate Change said it was "extremely likely" that human activity was the dominant cause of global warming, or about 95 percent certain -- often the gold standard in scientific accuracy.

"If this isn't an alarm bell, then I don't know what one is. If ever there were an issue that demanded greater cooperation, partnership, and committed diplomacy, this is it," U.S. Secretary of State John Kerry said after the IPCC report was released.

Monday, December 30, 2013

Billion-Dollar-a-Year Program to Deceive Public About Global Warming Is Exposed





General News

Billion-Dollar-a-Year Program to Deceive Public About Global Warming Is Exposed



By (about the author)     Permalink      
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A December 2013 academic article has documented how billionaires have made suckers of millions of people, to cause them to believe that global warming is a mere hoax, and to think that the oil companies' line on this matter is honest. 

This research, by Robert J. Brulle, was published in a leading climatological journal, Climate Change, and it reports that a small number of aristocrats have collectively spent, on average, a billion dollars a year, in order to fool the American public into thinking that climate change isn't happening, and that, even if it is, it's not caused by burning fossil fuels. These aristocrats control fossil fuels corporations, such as Koch Industries, and ExxonMobil, but their money for this mass-deception campaign is laundered through far-right-wing foundations they control, to think-tanks they control, which, in turn, buy professors to provide "authority" for these distortions and outright lies.  
That is why the reality (a graphical presentation of which can be seen at places such as   this ), though acknowledged by virtually all climatologists, is rejected, just disbelieved, by much of the public. 

Listed in order, with the largest listed first, the nine foundations that account for half of this total billion-dollar-a-year expenditure, are: Donors Trust, Scaife, Bradley, Koch, Howard, Pope, Searle, Dunn's, and Richardson. Their money is then further laundered, through the following eleven think-tanks, listed here also largest-first, which collectively account for a full two-thirds of this total billion-dollar-a-year propaganda campaign: American Enterprise Institute, Heritage Foundation, Hoover Institution, Manhattan Institute, Cato Institute, Hudson Institute, Atlas Economic Research, Americans for Prosperity, John Locke Foundation, Heartland Institute, and Reason Foundation. They, in turn, pay professors and journalists to write, both for the "news media," and for professional journals, to debunk or (in the scholarly publications) to raise questions about, global warming or its cause -- questions that are no longer even questions among actual climate scientists.

This study, titled  "Institutionalizing delay: foundation funding and the creation of U.S. climate change counter-movement organizations,"  reports that all of this money is spent "on maintaining a field frame that justifies unlimited use of fossil fuels by attempting to delegitimate the science that supports the necessity of mandatory limits on carbon emissions. To accomplish this goal in the face of  massive scientific evidence of anthropogenic climate change  [which is documented in that link] has meant the development of an active campaign to manipulate and mislead the public over the nature of climate science and the threat posed by climate change." Furthermore, "The available data indicates that the Koch and ExxonMobil Foundations have recently pulled back from funding" it. Whereas, "from 2003 to 2007, the Koch Affiliated Foundations and the ExxonMobil Foundation were heavily involved in funding" it, that changed, and, "since 2008, they are no longer making publicly traceable contributions" to this propaganda, because their "funding has shifted to pass-through untraceable sources," especially "Donors Trust," whose reason for existence is to enable extremely wealthy individuals and corporations to fund their propaganda campaigns anonymously and untraceably.

Whereas a billion dollars a year might sound like a lot, the net profits of even just the single petroleum-producer, ExxonMobil, were $44 billion last year; so, this mass-deception campaign is actually a small but enormously productive investment for these aristocrats, to keep their billions coming. They don't care that they are destroying this planet. As the head of ExxonMobil, Rex Tillerson, told his stockholders on May 29th,  cajolling  the few resisters there to go along with it:

"What good is it to save the planet if humanity suffers? ... We do not see a viable pathway with any known technology today to achieve the 350 [parts per billion atmospheric carbon] outcome that is not devastating to economies, societies and peoples' health and well-being around the world. ... You cannot get there. ... So the real question is: Do you want to keep arguing about that and pursuing something that cannot be achieved at costs that will be detrimental? Or do you want to talk about what's the path we should be on and how do we mitigate and prepare for the consequences as they present themselves?"

They have delayed the start of what must be done to "save the planet," so late that probably salvaging the planet (its biosphere) can no longer even be done any longer. And they want to delay it still longer, for as long as they can, so as to keep fossil-fuel sales high -- the planet be damned, as far as they care about it.

Tillerson gets paid  more than $40 million per year, but he still doesn't get paid enough to satisfy him . These people, it seems, are insatiable.
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Saturday, November 2, 2013

Climate Impacts Poised to Decimate Human and Earth Systems, says Leaked IPCC Draft






Leaked draft of UN panel's global review of future impacts from global warming predicts system break-downs across the board

- Jon Queally, staff writer 
 


The leaked draft paints a bleak vision of the world if mitigation efforts are not dramatically increased and emission reduction targets met. (Photo: Shutterstock)


 A draft of a global scientific review on how human and natural systems are expected to respond to the growing threat of climate change has been leaked and its contents—though not wholly unexpected to those who have followed climate science news in recent years—are nonetheless both alarming and devastating.

Titled, Climate Change 2014: Impacts, Adaptation, and Vulnerability, the leaked document is the draft version of the second installment of the Intergovernmental Panel on Climate Change's latest review of the global scientific consensus on the global warming and climate change.

The IPCC's first installment, released in September, focused on assessing the global scientific community's combined research on the causes, pace, and evidence of planetary climate change. As the title of the leaked draft suggests, the next installment takes a more focused looked at the way the projected climate impacts will play on a variety of the Earth's systems both in the natural world, including the oceans and natural habitats, and those, like agricultural and economic systems, built by human society.

Focusing on what the draft report says about the future of world agriculture and food security, the New York Times reports:
On the food supply, the new report finds [...] that over all, global warming could reduce agricultural production by as much as 2 percent each decade for the rest of this century.
During that period, demand is expected to rise as much as 14 percent each decade, the report found, as the world population is projected to grow to 9.6 billion in 2050, from 7.2 billion today, according to the United Nations, and as many of those people in developing countries acquire the money to eat richer diets.
Any shortfall would lead to rising food prices that would hit the world’s poor hardest, as has already occurred from price increases of recent years. Research has found that climate change, particularly severe heat waves, was a factor in those price spikes.
The agricultural risks “are greatest for tropical countries, given projected impacts that exceed adaptive capacity and higher poverty rates compared with temperate regions,” the draft report finds.
Asked by the New York Times, IPCC spokesperson Jonathan Lynn did not dispute the authenticity of the document, but emphasized that it was a "draft" still under review and said, “It’s likely to change.”
This is not the first time that drafts of the IPCC's work have been released without authorization, but many simply acknowledge that the review process—which includes assessments and input from hundreds of scientists and experts working in dozens of countries around the world—makes leaks nearly impossible to avoid.
The report on climate impacts looked specifically at how climate change will impact a range of areas, including fresh and salt water ecosystems, food production and agriculture, economic sectors, human health, conflict and security scenarios, and the interplay of these overlapping dynamics.
Offered with varying degrees of scientific consensus and confidence, what follows is a partial list of the key impacts of climate change contained in the leaked IPCC draft assessment:
  • Climate change will reduce renewable surface water and groundwater resources significantly in most dry subtropical regions, exacerbating competition for water among sectors
  • A large fraction of terrestrial and freshwater species faces increased extinction risk under projected climate change during and beyond the 21st century, especially as climate change interacts with other pressures, such as habitat modification, over-exploitation, pollution, and invasive species
  • Due to sea-level rise throughout the 21st century and beyond, coastal systems and low-lying areas will increasingly experience adverse impacts such as submergence, coastal flooding, and coastal erosion
  • By 2100, due to climate change and development patterns and without adaptation, hundreds of millions of people will be affected by coastal flooding and displaced due to land loss
  • Ocean acidification poses risks to ecosystems, especially polar ecosystems and coral reefs, associated with impacts on the physiology, behavior, and population dynamics of individual species
  • Without adaptation, local temperature increases of 1°C or more above preindustrial levels are projected to negatively impact yields for the major crops (wheat, rice, and maize) in tropical and temperate regions, although individual locations may benefit
  • Heat stress, extreme precipitation, inland and coastal flooding, and drought and water scarcity pose risks in urban areas for people, assets, economies, and ecosystems, with risks amplified for those lacking essential infrastructure and services or living in exposed areas
  • Major future rural impacts will be felt in the near-term and beyond through impacts on water supply, food security, and agricultural incomes, including shifts in production of food and non-food crops in many areas of the world
  • Global mean temperature increase of 2.5°C above preindustrial levels may lead to global aggregate economic losses between 0.2 and 2.0% of income
  • Until mid-century, climate change will impact human health mainly by exacerbating health problems that already exist (very high confidence), and climate change throughout the 21st century will lead to increases in ill-health in many regions, as compared to a baseline without climate change
  • Climate change indirectly increases risks from violent conflict in the form of civil war, inter-group violence, and violent protests by exacerbating well-established drivers of these conflicts such as poverty and economic shocks
  • Throughout the 21st century, climate change impacts will slow down economic growth and poverty reduction, further erode food security, and trigger new poverty traps, the latter particularly in urban areas and emerging hotspots of hunger
The complete version of the leaked draft follows:
[LEAKED DRAFT*] IPCC: Change 2014: Impacts, Adaptation, and Vulnerability

 
____________________________________

Wednesday, October 9, 2013

2047: The Year the World Hits 'Climate Departure'






'Within my generation, whatever climate we were used to will be a thing of the past,' says lead research of new study

 

- Andrea Germanos, staff writer 
 
 
 

(Image: University of Hawaii/Abby Frazier)


If global warming continues its trajectory, the year average temperatures surpass historical norms is just over a few decades away, bringing huge threats to global biodiversity, a new study shows.

Researchers at the University of Hawaii, Manoa created an index based on 39 climate models used in a dozen countries, and compared that data to the extreme records from 1860 through 2005.

“We looked at the minimum and maximum values that occurred in that 150-year window and that’s how we set our bounds of recent historical variability,” explained Ryan Longman, a doctoral student who worked on the analysis.

The researchers were then able to come up with the "year of climate departure," and found that the worldwide average for that date was 2047, meaning that after year after that point will be as warm or warmer. In other words, it's the date "when the old maximum average temperatures become the new minimum temperatures."

"The results shocked us," Camilo Mora, the study's lead author, said in a statement. "Regardless of the scenario, changes will be coming soon. Within my generation, whatever climate we were used to will be a thing of the past."
In 2047, Washington, DC and New York City will see temperatures exceeding historical norms.  In Mexico City, that date could come as soon as 2031.  For Kingston, Jamaica, it's just 10 years away. (You can see more of the findings in this map.)

While the Arctic and Antarctic have been the subject numerous reports on the effects of climate change, the new study, shows how small temperature changes in the Tropics could have massive impacts.

The Smithsonian's Surprising Science blog explains:

Because the tropics have less variability in temperature to start with, it takes less of a shift to push temperatures there beyond the norm. On the other hand, temperatures will indeed surge most in the Arctic and Antarctic, but there’s already more natural climate variability at those locales to begin with.
This is a huge concern, because wildlife biodiversity is consistently highest at the tropics, and most of the world’s biodiversity hotspots are located there (tropical rainforests, for instance, are estimated to cover less than 2 percent of the Earth’s surface area yet contain roughly 50 percent of its plant and animal species). If, historically, these ecosystems evolved in the presence of relatively little climatic biodiversity, it follows that they might be less capable of coping with swings in temperature and adapting to survive.

"Extinctions are likely to result," warned Ken Caldeira of the Carnegie Institution for Science's Department of Global Ecology.  Caldeira, who was not involved in the study, added that "Some ecosystems may be able to adapt, but for others, such as coral reefs, complete loss of not only individual species but their entire integrity is likely."

In addition, the study found that oceans already passed their historical extremes in acidification in 2008.

"Scientists have repeatedly warned about climate change and its likely effects on biodiversity and people," said Mora. "Our study shows that such changes are already upon us."

Still, Mora is hopeful that the findings can be a catalyst for change.

"These results should not be reason to give up. Rather, they should encourage us to reduce emissions and slow the rate of climate change," stated Mora. "This can buy time for species, ecosystems, and ourselves to adapt to the coming changes."

The study found that under an "emissions stabilization scenario," the "year of climate departure" could be pushed back—to 2069.

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