20/05/2018

Scholar: Dumping Fossil Fuels By 2050 Needed To Save Climate

Washington Post - Menelaos Hadjicostis Associated Press



NICOSIA, Cyprus — Getting rid of fossil fuels by mid-century and making the switch to large-scale renewable energy sources and nuclear power offers the best chance of meeting the climate change targets set out by the Paris accord, a prominent American economist said Friday.
Columbia University Professor Jeffrey Sachs said the world’s ways of producing and using energy need to change “much faster, much more dramatically” than political leaders looking to tap hydrocarbon reserves understand.
“So, if we want to move to zero emissions we better get the idea to move away from fossil fuels faster than Shell oil company thinks we can,” Sachs told a conference in the Cypriot capital on the climate change challenges faced by Mediterranean countries and the Middle East.
Sachs said climate change bringing desertification, drought, crop failures and rising sea levels are putting the region’s agriculture “in dire threat.”
“It’s worked well for the last 8,000 years and we’re going to ruin it in this generation, and that’s crazy,” said Sachs, who also serves as an adviser to United Nations Secretary-General Antonio Guterres on sustainable development.
“This is the tinder of conflict, of mass migration, or all the things we don’t handle decently,” he added.
Sachs says the best approach is to set up interconnected power grids where emissions-free electricity from renewable energy sources in one region could be transmitted elsewhere.
For instance, an interconnected grid would enable North African and the Middle Eastern countries harnessing their ample solar power potential to transmit generated electricity to colder and less sunny northern Europe.
Sachs hailed China as the current world leader in the energy interconnection project and urged Europe to draw up similar plans.
Although opposing exploitation of east Mediterranean gas deposits, he urged countries moving ahead with such projects to take steps and steeply curb carbon emissions while preparing their economies for carbon-free electricity generation to fire up everything from cars, to ships and factories.
Sachs, who also heads Columbia University’s Earth Institute, said Mediterranean countries could work together to draw up proposals on mitigating the challenges they face and submit them to a high-level U.N. climate summit set for September, 2019.

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'Going Backwards': A Third Of Protected Land At Risk As Australia Lags

Fairfax - Peter Hannam

Almost a third of the world's protected lands face intense pressure from humans with even rich nations such as Australia failing to conserve key biodiversity, a new study by Australian scientists has found.
The research, published in Science on Friday, found that while declared protected zones had quadrupled in size in the past quarter century, much of that land enjoyed little protection from farming, logging or other human intervention.
“One third of that land is in a terrible state, doing nothing for biodiversity conservation," said James Watson, interim director of the University of Queensland's Centre for Biodiversity and Conservation Science and an author of the report.
"Nations across the world are exaggerating in an incredible way their contribution to solving the biodiversity crisis.”
Threats from expanding slash and burn agriculture are placing pressure on many national parks around the world, even the better managed ones such as Niassa Reserve in Mozambique. Photo: World Conservation Society/UQ
The study claims to be first to examine in high resolution - using satellite imagery and other data - the world's 202,000 protected areas that account for almost 15 per cent of land.
"We couldn't have done this study 10 years ago," Professor Watson said. "Nations need to realise they're going to be held more and more to account."

Search for funds
Among the examples are the Tsavo east and west national parks in Kenya.
The reserve was established in 1948 and now has a railway built through it, with plans to establish a six-lane highway to parallel it. Animals at risk include the eastern black rhinoceros and Tsavo lions, whose adult males often lack manes.
The Rio Platano Biosphere Reserve in Honduras had lost about 300 square kilometres to illegal agriculture and infrastructure. The area includes some of Central America's last surviving areas of undisturbed rainforest, and is home to king vultures, jaguar and mantled howler and spider monkeys.
Nations should address rising human pressures - including from climate change - not by defunding national parks but stepping up support for regions that were important for economic and social wellbeing, and the natural capital they contain, the paper said.
"Funding could also be increased through mechanisms that allow nations to trade or offset conservation funding and commitments, so wealthy nations can support conservation in poorer nations," it said.

'Massively degraded'
Australia's track record was notably poor, with mining permitted in national parks - such as Kakadu - and cattle allowed into conservation areas in places such as the Carnarvon Gorge in Western Australia and alpine reserves in Victoria.
"At least 15 per cent of Australia’s protected areas are massively degraded," Professor Watson said.
“Australia, unless a miracle occurs, will always be going backwards, because there’s no injection of cash to get the objectives we need.”
Recent federal budgets have included deep cuts to conservation spending with at least 60 officers involved in biodiversity cut in the 2017 budget, said James Trezise, healthy ecosystems policy co-ordinator for Australian Conservation Foundation.
"Some places that we think are safe and free from development are quite clearly at significant exposure," Mr Trezise said.
Australia's track record on biodiversity conservation is poor, even in some protected areas. Photo: Goongerah Environment Centre, Gippsland
Those cutbacks extend to marine areas too, with the Turnbull government responsible for the largest reversal of such protections in the world in changes announced in April, he said.
The Murray Valley National Park in NSW is also at risk of being de-gazetted, with the local Nationals MP Austin Evans campaigning to turn the area into a state forest open to logging.
Oisin Sweeney, science officer for the National Parks Association, said that as a wealthy nation, Australia "could be doing a hell of a lot better" in preserving its rich biodiversity.
"Massive" budget cuts to the National Reserve System had also weakened "the biggest single tool to acquire national park land", while states such as NSW had deliberately been reducing the numbers of experienced park rangers, Dr Sweeney said.
Mr Trezise said NSW, Victoria and Tasmania had also been accelerating efforts to open up national parks to development such as resorts and projects such as a cable car up Mt Wellington near Hobart.

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What Is Climate Change? The Definition, Causes And Effects

Wired

Climate change is one of the biggest crises facing humanity. Let's all get a grip on exactly what it is
Getty Images / David McNew / Stringer
Climate change is the catch-all term for the shift in worldwide weather phenomena associated with an increase in global average temperatures. It's real and temperatures have been going up around the world for many decades.
Reliable temperature records began in 1850 and our world is now about one degree Celcius hotter than it was in the period between 1850 and 1900 – commonly referred to as the "pre-industrial" average.
The change is even more visible over a shorter time period – compared to average temperatures between 1961 and 1990, 2017 was 0.68 degrees warmer, while 2016 was 0.8 degrees warmer, thanks to an extra boost from the naturally-occurring El NiƱo weather system.
While this temperature increase is more specifically referred to as global warming, climate change is the term currently favoured by science communicators, as it explicitly includes not only Earth's increasing global average temperature, but also the climate effects caused by this increase.
Global efforts are now focussed on keeping temperatures from increasing more than two degrees above that pre-industrial average, and ideally no more than 1.5 degrees. That goal may still be possible if the international community pulls together.

What are the effects of climate change?
Worsening drought conditions are having a major impact on farmers in South Africa's Western Cape region. Morgana Wingard/Getty Images
The effects of anthropogenic – human-caused – climate change range from more frequent and severe droughts to snowstorms and extreme winter weather in temperate regions as a result of warming Arctic weather fronts.
It's not only humans that are affected. Warming ocean temperatures are increasing the frequency of coral reef bleaching; warmer, drier weather means that forests in some regions are no longer recovering from wildfires and wildlife habitats around the world are becoming less hospitable to animals.
Climate change is having economic and socio-political effects, too. Food security is already being impacted in a number of African countries and researchers are studying suggestive links between climate change and an increased likelihood of military conflict.
We're already seeing the first climate refugees as people are displaced by rising sea levels, melting Arctic permafrost and other extreme weather.

What are the causes of climate change?
We are. While a wide range of natural phenomena can radically affect the climate, publishing climate scientists overwhelmingly agree that global warming and resultant climate effects that we're witnessing are the result of human activity.
Life on Earth is dependent on an atmospheric "greenhouse" – a layer of gasses, primarily water vapour, in the lower atmosphere that trap heat from the sun as it's reflected back from the Earth, radiating it back and keeping our planet at a temperature capable of supporting life.
Human activity is currently generating an excess of long-lived greenhouse gasses that – unlike water vapour – don't dissipate in response to temperature increases, resulting in a continuing buildup of heat.
Key greenhouse gasses include carbon dioxide, methane and nitrous oxide. Carbon dioxide is the best-known, with natural sources including decomposition and animal respiration. The main source of excess carbon dioxide emissions is the burning of fossil fuels, while deforestation has reduced the amount of plant life available to turn CO2 into oxygen.
Methane, a more potent but less abundant greenhouse gas, enters the atmosphere from farming – both from animals such as cattle and arable farming methods including traditional rice paddies – and from fossil fuel exploration and abandoned oil and gas wells.
Chlorofluorocarbons and hydrofluorocarbons – once widely used in industrial applications and home appliances such as refrigerators – were key greenhouse gasses released during the 20th century, but are now heavily regulated due to their severe impact on the atmosphere, which includes ozone depletion, as well as trapping heat in the lower atmosphere.
Our warming climate is also creating a feedback loop as greenhouse gasses trapped in Arctic permafrost are released.

Why is climate denial a thing?
August 29 2017: People wade along a flooded street as cars become stuck during heavy rain in Mumbai. Imtiyaz Shaikh /Anadolu Agency/Getty Images
For many years, oil companies were heavily invested in pushing the narrative that fossil fuels did not have an impact on climate change. To this end, they bought advertising and funded organisations to cast doubt on climate change, even while their own research conclusively showed that fossil fuels are a major contributing cause of climate change.
This is still playing out in ongoing lawsuits against oil companies, but even giants such as Chevron now publicly acknowledge the role that fossil fuel use has played in changing our climate. Now, their key defence is that it's the fault of fossil fuel consumers for using it, rather than of the companies that extracted, marketed and profited from oil.

Definition of Climate Change
Nasa defines climate change as: "a broad range of global phenomena created predominantly by burning fossil fuels, which add heat-trapping gases to Earth’s atmosphere. These phenomena include the increased temperature trends described by global warming, but also encompass changes such as sea level rise; ice mass loss in Greenland, Antarctica, the Arctic and mountain glaciers worldwide; shifts in flower/plant blooming; and extreme weather events."

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19/05/2018

Earth Just Had Its 400th Straight Warmer-Than-Average Month Thanks To Global Warming

USA TODAY - 


NOAA climate scientists say April 2018 marked the planet's 400th consecutive month with above-average temperatures. USA TODAY

It was December 1984, and President Reagan had just been elected to his second term, Dynasty was the top show on TV and Madonna's Like a Virgin topped the musical charts.
It was also the last time the Earth had a cooler-than-average month.
Last month marked the planet's 400th consecutive month with above-average temperatures, federal scientists from the National Oceanic and Atmospheric Administration announced Thursday.
The cause for the streak? Unquestionably, it’s climate change, caused by humanity's burning of fossil fuels.
"We live in and share a world that is unequivocally, appreciably and consequentially warmer than just a few decades ago, and our world continues to warm," said NOAA climate scientist Deke Arndt. "Speeding by a '400' sign only underscores that, but it does not prove anything new."
Climate scientists use the 20th-century average as a benchmark for global temperature measurements. That's because it's fixed in time, allowing for consistent "goal posts" when reviewing climate data. It's also a sufficiently long period to include several cycles of climate variability.
"The thing that really matters is that, by whatever metric, we've spent every month for several decades on the warm side of any reasonable baseline," Arndt said.
NOAA's analysis found last month was the 3rd-warmest April on record globally. The unusual heat was most noteworthy in Europe, which had its warmest April on record, and Australia, which had its second-warmest.
Photo: Rajat Gupta, EPA-EFE
Portions of Asia also experienced some extreme heat: In southern Pakistan, the town of Nawabshah soared to a scalding 122.4 degrees on April 30, which may have been the warmest April temperature on record for the globe, according to Meteo France.
Argentina also had its warmest April since national records began there in 1961.
North America was the one part of the world that didn't get in on the heat parade. Last month, the average U.S. temperature was 48.9 degrees, 2.2 degrees below average, "making it the 13th-coldest April on record and the coldest since 1997," NOAA said.
For the year-to-date, the Earth is seeing its 5th-warmest start to the year.
A separate analysis of global temperature data from NASA also found last month was the third-warmest April on record.
Another milestone was reached in April, also related to the number "400": Carbon dioxide — the gas scientists say is most responsible for global warming — reached its highest level in recorded history at 410 parts per million.
This amount is highest in at least the past 800,000 years, according to the Scripps Institute of Oceanography.
The Earth had its 3rd-warmest April on record, both NOAA and NASA said. Red areas are warmer-than-average. North America was the one part of the world that saw unusually cool temperatures in April. (Photo: NASA)
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Population Control, The Environmental Fix No One Wants To Talk About

Les Echos (translation WORLDCRUNCH) - GĆ©rard Maarek

Climate change is a real and alarming problem. But there's another — and intimately related — ticking time bomb threatening our planet: overpopulation. 
Rickshaws in Dhaka, Bangladesh Suvra Kanti Das/ZUMA


PARIS — More than 250 years ago — on Nov. 1, 1755 — a high-magnitude earthquake and resulting tsunami and fire ravaged the city of Lisbon, killing some 60,000 people. It also prompted a passionate, philosophical debate between two of Europe's leading thinkers of the time: Voltaire and Jean-Jacques Rousseau.
To Voltaire, the catastrophe represented the cruel hand of fate and the unfathomable decree of Providence — further evidence of just how miserable the human condition really is. Rousseau, on the other hand, saw urban expansion and population density as playing a key role in the death and destruction. It stemmed from an overall excess of civilization and separation from nature, he reasoned.
It's easy, nowadays, to dismiss the position taken by the author of Zadig. And yet, people are still reluctant to side with Rousseau and to endorse the radical criticisms of the Reveries of a Solitary Walker. Perhaps they should reconsider though. Have they not noticed the consistent increase in the frequency of natural disasters, their explosive costs — a record $306 billion dollars in 2017 — and the growing number of victims to mourn?
Contemporary thinkers are satisfied instead with the unambiguous explanation that human activity generates greenhouse gas, which causes global warming. With a few modifications, the thinking holds, we can arrange everything just so and solve the problem. But this all-too-casual chain of thought is questionable in more ways than one.
The human species has taken over the entire animal kingdom.
First, not all natural disasters can be attributed to the climate. Consider the Asian tsunami in 2004 that took 250,000 lives, or the devastating earthquake in Haiti in 2010.
Second, if these cataclysms are causing more and more damage, it's also because they reach denser population centers and ruin more expensive infrastructure and equipment.
Third, the extinction of numerous animal species is less linked to global warming and more to mankind's direct impact on our ecosystems (urbanization, overfishing, hunting, chemical pollution, etc.). The human species has taken over the entire animal kingdom.
Demographics is the "blind spot" of environmental politics. While the right side of the brain debates the maximum temperature threshold the world can handle, the left side of the brain contemplates the skyrocketing projection of population increase.
For example, between 1990 and 2014, global CO2 emissions increased by 58%, but only by 15% per capita. The increase in the population thus contributed nearly three-quarters of the growth. And yet, the Climate Change Conference in Paris (or COP21) completely ignored the issue.
Train station in Beijing  Photo: Pan Kanjun/Xinhua/ZUMA
The reasons behind this attitude are multiple and profoundly rooted in our collective unconscious. For one thing, a numerous population used to be a synonym of power. It meant a workforce for agriculture, a reservoir of manpower for the industry, and a way of expanding the ranks of the army. And some of that thinking still holds sway. Why would one country try to limit its rate of population growth if its neighbors practice the opposite?
Demography is all about externalities. For a while those externalities were positive: More people gathering in cities and working in factories led to greater production and even more jobs. But there are negatives as well.
The birth of a child affects the future of every other person on the planet. Once a baby is born, we feel compelled to stand in solidarity with that child no matter what happens. Then, when she becomes an adult, she'll contribute to the increasing anthropic pressure, not only in her neighborhood but the entire planet as well.
These questions may not be politically correct, but they need to be asked.
Today, we are without a doubt at the inflection point at which the negative externalities prevail. To combat this, there are two possible strategies: A ban that threatens penalties or promises incentives. China wasted no time enacting the first strategy with the one-child policy, which promoted economic growth. India also tried this is the 1970s with limited success. Today, 1.35 billion people live in India, triple what it was 50 years ago.
Elsewhere in the world, we just wait for quality-of-life improvements to dissuade couples from having multiple children. This strategy has worked quite well in the West, vastly lowering the fertility rate, and has also taken effect, more recently, in Asia and the Middle East. But the inertia of the demographic phenomenon is great.
Africa is lagging behind, contributing to nearly 60% of the expected global population increase by 2050 (+1.3 billion people). Family planning policies remain principally ineffective.
Is procreation an unequivocal human right? The Universal Declaration does not explicitly say so. It is limited instead to the vague statement of the right to marriage and the foundation of a family (Article 16). Should we leave it to individual states to decide their own familial policies? These questions may not be politically correct, but they need to be asked.
Developed countries — the biggest polluters — are ready to drastically reduce their greenhouse gas emissions. A wedge formula shows that if each country were to stabilize its CO2 emissions per capita today, the global volume would still increase 16% by 2050 as a result of population increase. Conversely, to maintain the volume at the level it is at today, developing countries could maintain their emission levels if developed countries agreed to decrease their emissions by 40%.
This shows that the challenge is large and that we should welcome more control over population growth.
The solution must be tailored to accommodate developing countries, especially those in Africa (Article 7 of the Paris Accord). Will such an incentive system suffice? Will more coercive measures be necessary to avoid the explosion of the "demographic bomb" and its fallout in terms of wars and uncontrollable migratory movements?
What does seem clear is that if we fail to meet this challenge, future generations will realize, sooner rather than later, that the real "mother of all disasters" isn't climate change, per se, but overpopulation.

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18/05/2018

Corporations To Lead Charge Into Wind, Solar And Storage

RenewEconomy - 


Renewable energy production from Australian businesses has more than doubled over the last two years, and nearly half are making the switch to wind and/or solar to take control over their electricity bills and to help reduce emissions.
A new survey from the Climate Council says the massive shift to wind and solar is happening because electricity bills are soaring and wind and solar and storage offer an affordable and reliable solution.
In Australia, 46 per cent of businesses are looking to turn to wind and solar, many are looking for those technologies to provide the bulk of their power needs, and they are also looking at storage and electric vehicles.
“This report shows that the rising cost of energy is the number one concern for Australian businesses over the next decade,” says the Climate Council’s Greg Bourne, a former chair of the Australian Renewable Energy Agency.
“So it’s no surprise that a variety of businesses from bakeries to breweries, and tech agencies to chilli and chicken farms, are all turning to affordable renewable energy and storage solutions.
“These businesses are actively investing in renewable energy in a bid to cut costs and take control of their power bills, while also playing a crucial role in transitioning the nation away from ageing, polluting and unreliable fossil fuels.”
The role of corporations is expected to be one of the key factors in the future of large-scale and distributed renewable energy projects over the coming decade, particularly if the federal government fails to lift its emissions reduction targets for 2030.
Right now, the government is seeking to lock in a 26 per cent cut in electricity emissions from 2005 levels by 2030, through its National Energy Guarantee.
But most independent analysis say this target will be largely met by the renewable energy target by 2020 – meaning little incentive for further construction in the following 10 years.
That leaves only state-based targets such as Victoria, Queensland, and the Northern Territory, and the underlying push from households and businesses turning to renewables and storage to address their electricity bills.
A total of 46,000 Australian businesses have already installed solar energy, and this has mostly been in relatively small-scale rooftop arrays, although the pace of this uptake has accelerated dramatically in the last 12-18 months, as this graph below illustrates.

According to the Clean Energy Regulator, the amount of rooftop solar installed by businesses (arrays of up to 1MW) will increase five fold in 2018 to around 100MW.
The other more recent phenomenon is the decision by very large businesses and energy users to turn to large-scale wind and solar project to lower their bills in response to the doubling of electricity prices and soaring gas bills.
Some companies, such as Nectar  Farms, have chosen to electrify their businesses so they can use cheaper wind energy and battery storage, rather than expensive gas.
Nectar Farms will build the country’s largest vegetable greenhouse, powered by wind and solar, on an old gold mine in Stawell in Victoria, as part of a $550 million project with Neoen and Tesla.
In South Australia, Sundrop Farms turned to solar towers and solar thermal to provide power, heat and desalinated water for their tomato growing operations (pictured top).
In Queensland, Sun Metals will soon become Australia’s first major refiner to go solar with the imminent opening of its 124MW solar farm, which will help underpin a $300 million expansion of the refinery by locking in low electricity costs.
Other major corporations that have signed contracts for large-scale solar or wind farms include Telstra, CUB, Westpac, Foster’s, ANZ, and CC Amatil. There are many others in the pipeline.
The Climate Council quoted a recent Baker and McKenzie survey of business intentions which shows that 40 per cent of its respondents are looking at renewables, and 40 per cent are also considering some form of storage.
Other key factors include changing business models to align with renewables and storage, and also preparing for the widely anticipated uptake of electric vehicles, and infrastructure such as charging networks.
One-third of businesses said they were considering using renewables as their main source of energy in the next 18 months – that’s a big development from businesses putting on small amounts of rooftop solar to support their “green messaging”.
A total of 138 global corporations have made a commitment to go ‘100% renewable’, including food producers, car manufacturers, data centre operators, breweries, real estate companies, banks and fashion brands .
These 100 per cent renewable companies include Microsoft, Apple, Google, Facebook, Wells Fargo, Johnson and Johnson and Amazon. They also include Anheuser-Busch, the owner of Australia’s Carlton and United Breweries, which is also going 100 per cent renewable.
In the US, nearly two-thirds of Fortune 100 and nearly half of Fortune 500 companies have set ambitious renewable or sustainability targets.
“This is a world-wide transition, with businesses around the globe taking advantage of the investment opportunities associated with renewable energy,” Bourne says.
Climate Council Energy and Climate Solutions Analyst Petra Stock said businesses were naturally transitioning to renewable energy and battery storage, with wind and solar now the cheapest forms of new-build energy generation, far cheaper than a new coal power station.
“This transition is good for the pockets of business owners and good for our climate, it really is a win-win.”
“This report showcases a range of Aussie businesses who are benefiting from making the switch to solar and wind, including eight New South Wales chicken farms that are saving an astonishing $2,000 a day,” said Stock.
“It simply makes good economic sense for businesses to make the switch to clean, affordable and reliable renewable energy and battery storage. Renewables are taking care of Aussie businesses facing high electricity prices.”

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Urgent Climate Action Required To Protect Tens Of Thousands Of Species Worldwide, New Research Shows

InsideClimate News - John H. Cushman Jr. | Neela Banerjee

Limiting global warming to 2 degrees and not the more ambitious 1.5 degrees would put far more species at risk of extinction. Insects are especially vulnerable.
A mere half degree of extra global warming could mean profound risks for tens of thousands of the planet's species, scientists have found. Credit: Alex Wong/Getty Images
Humanity can powerfully improve the survival odds of tens of thousands of species, but only if nations dramatically raise their ambitions in the fight against climate change, according to new research published on Thursday in the journal Science.
One key to salvaging plant and vertebrate habitat and protecting the world's biodiversity is to limit warming to the most challenging benchmark established under the 2015 Paris treaty—1.5 degrees Celsius of warming—not to the treaty's less stringent 2 degree guardrail, the study found.
The study assessed, in more detail than ever before, a key measure of extinction risk: the shrinking size of each species' current geographical range, or natural habitat. It projected that for an alarming number of species, their range size would shrink by at least half as temperatures rise past the Paris goals.
If nations do no more than they have pledged so far to reduce their greenhouse gas emissions—and warming consequently shoots past 3 degrees by the end of this century—6 percent of all vertebrates would be at risk. So would 44 percent of plants and a whopping 49 percent of insects.
But the dangers would be greatly reduced if warming can be limited to 1.5 degrees. That might protect the overwhelming majority of the 115,000 species assessed by the researchers. Just 4 percent of vertebrates would lose more than half of their current range. Only 8 percent of plants and 6 percent of insects would face that risk.
Keeping warming to 2 degrees is not nearly as effective, they found. The additional half degree of warming would double the impact on plants and vertebrate species, and triple the impact on insects.

First-of-Its-Kind Biodiversity Study
Conducted by researchers from the University of East Anglia in the United Kingdom and James Cook University in Australia, the study builds on their earlier work. For the first time, it examines insects and explores how effectively the extinction risks can be addressed by increasing ambition.
"If warming is limited to 1.5 degrees Celsius by 2100, then more species can keep up or even gain in range," said Rachel Warren, the study's lead researcher, "whereas if warming reached 2 degrees Celsius by 2100, many species cannot keep up and far more species lose large parts of their range."
The new research adds a compelling layer of evidence to the mounting risks of rising temperatures. The Intergovernmental Panel on Climate Change (IPCC) is currently revising a comprehensive draft report on the science behind the 1.5 degree target. This new report on endangered species was written in time to be reflected in the IPCC review, to be published in the fall.
A leaked copy of the latest IPCC draft, circulated for expert comment in the winter, noted in its summary that "local extinction (extirpation) risks are higher in a 2 degrees Celsius warmer world, compared to  1.5 degrees Celsius."

Race to Bolster Paris Treaty's Call for Action
At Paris, everyone recognized that the pledges to cut emissions would fall short of meeting the 2 degree target. Even so, the world's nations decided to shoot for 1.5 degrees, where the dangers become pronounced for small island states and other highly vulnerable people. Since then, talks about increasing ambition have made relatively little headway, and President Donald Trump has renounced the pledges of the Obama administration.
Whether the goal is 2 degrees or 1.5 degrees, scientists say it can only be met by bringing net emissions of carbon dioxide from burning fossil fuels to zero later in this century. The main difference is that with the more ambitious goal, emissions must be reduced much faster; some say it's already too late.
This urgency has been highlighted by one peer-reviewed study after another, as scientists explore the consequences of falling short. Hundreds of scientists have filed thousands of comments to the IPCC as it races to bolster the treaty's call for rapid action.

115,000 Species Studied; Insects Particularly Vulnerable
Since lost species never come back, and since many species perform vital ecosystem services, the growing risks of extinction are an especially profound aspect of climate change.
Until now, these problems have been studied in relatively few species, notably tropical coral reefs, which are already dying off under the approximately 1 degree of warming that's been observed so far. They may be partly saved if emissions are reduced aggressively enough to stay below 1.5 degrees.
This time, the researchers examined 115,000 species, including 34,000 insects and other invertebrates that previously have not been included in global studies of climate and biodiversity. (Roughly a million species of insects have been named, and there may be many more.)
Insects, it turned out, are particularly sensitive to temperature increases, and these findings are particularly alarming.
They focus attention on pollinators essential to agriculture and insects that serve as food for birds and animals. The researchers found that three groups of pollinators are especially vulnerable to climate risks—true flies, beetles, and moths and butterflies.
The study's authors concluded that meeting the most aggressive temperature target would most benefit species in Europe, Australia, the Amazon and southern Africa.
The study also looked at the ability of different species to migrate outside their normal ranges.
Birds, mammals and butterflies have better chances of relocating than other species as temperatures rise, the researchers found.

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Lethal Heating is a citizens' initiative