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FILE - In this Feb. 26, 2014 file photo, children walk back home after school on a severely polluted day in Shijiazhuang, in northern China's Hebei province. Global warming is triggered by heat-trapping gases, such as carbon dioxide, that stay in the atmosphere for a century. Much of the gases still in the air and trapping heat came from the United States and other industrial nations. China is now by far the No. 1 carbon dioxide polluter, followed by the United States and India. (AP Photo/Alexander F. Yuan, File)
U.N. climate panel: ‘Things are worse than we had predicted’
Report » Warming will worsen issues that society already has, such as poverty, violence, refugees.
First Published Mar 30 2014 10:28 pm • Last Updated Mar 30 2014 10:28 pm

Yokohama, Japan • Global warming is driving humanity toward a whole new level of many risks, a United Nations scientific panel reports, warning that the wild climate ride has only just begun.

Twenty-first century disasters such as killer heat waves in Europe, wildfires in the United States, droughts in Australia and deadly flooding in Mozambique, Thailand and Pakistan highlight how vulnerable humanity is to extreme weather, says a massive new report from a Nobel Prize-winning group of scientists released early Monday. The dangers are going to worsen as the climate changes even more, the report’s authors say, adding that no one is immune.

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"We’re all sitting ducks," Princeton University professor Michael Oppenheimer, one of the main authors of the 32-volume report from the Intergovernmental Panel on Climate Change, said in an interview.

After several days of late-night wrangling, more than 100 governments unanimously approved the scientist-written 49-page summary — which is aimed at world political leaders. The summary mentions the word "risk" an average of about 5½ times per page.

"Changes are occurring rapidly and they are sort of building up that risk," said the overall lead author of the report, Chris Field, of the Carnegie Institution for Science in California.

These risks are both big and small, according to the report. They are now and in the future. They hit farmers and big cities. Some places will have too much water, some not enough, including drinking water. Other risks mentioned in the report involve the price and availability of food, and to a lesser and more qualified extent some diseases, financial costs and even world peace.

"Things are worse than we had predicted" in 2007, when the group of scientists last issued this type of report, said report co-author Saleemul Huq, director of the International Centre for Climate Change and Development at the Independent University in Bangladesh. "We are going to see more and more impacts, faster and sooner than we had anticipated."

The problems have gotten so bad that the panel had to add a new and dangerous level of risks. In 2007, the biggest risk level in one key summary graphic was "high" and colored blazing red. The latest report adds a new level, "very high," and colors it deep purple.

You might as well call it a "horrible" risk level, said report co-author Maarten van Aalst, a top official at the International Federation of Red Cross and Red Crescent Societies.

"The horrible is something quite likely, and we won’t be able to do anything about it," he said.


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The report predicts that the highest level of risk would first hit plants and animals, both on land and the acidifying oceans.

Climate change will worsen problems that society already has, such as poverty, sickness, violence and refugees, according to the report. And on the other end, it will act as a brake slowing down the benefits of a modernizing society, such as regular economic growth and more efficient crop production, it says.

While the problems from global warming will hit everyone in some way, the magnitude of the harm won’t be equal, coming down harder on people who can least afford it, the report says. It will increase the gaps between the rich and poor, healthy and sick, young and old, and men and women, van Aalst said.

Much of what the authors warn of are more nuanced troubles that grow by degrees and worsen other societal ills. The report also concedes that there are uncertainties in understanding and predicting future climate risks.

The report also notes that one major area of risk is that with increased warming, incredibly dramatic but ultra-rare single major climate events, sometimes called tipping points, become more possible with huge consequences for the globe. These are events like the melting of the Greenland ice sheet, which would take more than 1,000 years.

"I can’t think of a better word for what it means to society than the word ‘risk,’ " said Virginia Burkett of the U.S. Geological Survey, one of the study’s main authors. She calls global warming "maybe one of the greatest known risks we face."

Global warming is triggered by heat-trapping gases, such as carbon dioxide, that stay in the atmosphere for a century. Much of the gases still in the air and trapping heat came from the United States and other industrial nations. China is now by far the No. 1 carbon dioxide polluter, followed by the United States and India.

Unlike in past reports, where the scientists tried to limit examples of extremes to disasters that computer simulations can attribute partly to man-made warming, this version broadens what it looks at because it includes the larger issues of risk and vulnerability, van Aalst said.

Freaky storms like 2013’s Typhoon Haiyan, 2012’s Superstorm Sandy and 2008’s ultra-deadly Cyclone Nargis may not have been caused by warming, but their fatal storm surges were augmented by climate change’s ever rising seas, he said.

And in the cases of the big storms like Haiyan, Sandy and Hurricane Katrina in 2005, the poor were the most vulnerable, Oppenheimer and van Aalst said. The report talks about climate change helping create new pockets of poverty and "hotspots of hunger" even in richer countries, increasing inequality between rich and poor.

"Rich people benefit from using all these fossil fuels," University of Sussex economist Richard Tol said. "Poorer people lose out."



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