- Associated Press - Friday, November 18, 2011

WASHINGTON (AP) - Think of the Texas drought, floods in Thailand and Russia’s devastating heat waves as coming attractions in a warming world. That’s the warning from top international climate scientists and disaster experts after meeting in Africa.

The panel said the world needs to get ready for more dangerous and “unprecedented extreme weather” caused by global warming. These experts fear that without preparedness, crazy weather extremes may overwhelm some locations, making some places unlivable.

The Nobel Prize-winning Intergovernmental Panel on Climate Change issued a special report on global warming and extreme weather Friday after meeting in Kampala, Uganda. This is the first time the group of scientists has focused on the dangers of extreme weather events such as heat waves, floods, droughts and storms. Those are more dangerous than gradual increases in the world’s average temperature.

For example, the report predicts that heat waves that are now once-in-a-generation events will become hotter and happen once every five years by mid-century and every other year by the end of the century. And in some places, such as most of Latin America, Africa and a good chunk of Asia, they will likely become yearly bakings.


And the very heavy rainstorms that usually happen once every 20 years will happen far more frequently, the report said. In most areas of the U.S. and Canada, they are likely to occur three times as often by the turn of the century, if fossil fuel use continues at current levels. In Southeast Asia, where flooding has been dramatic, it is likely to happen about four times as often as now, the report predicts.

One scientist points to this year’s drought and string of 100 degree days in Texas and Oklahoma, which set an all-time record for hottest month for any U.S. state this summer.

“I think of it as a wake-up call,” said one of the study’s authors, David Easterling, head of global climate applications for the U.S. National Oceanic and Atmospheric Administration. “The likelihood of that occurring in the future is going to be much greater.”

The report said world leaders have to prepare better for weather extremes.

“We need to be worried,” said one of the study’s lead authors, Maarten van Aalst, director of the International Red Cross/Red Crescent Climate Centre in the Netherlands. “And our response needs to anticipate disasters and reduce risk before they happen rather than wait until after they happen and clean up afterward. … Risk has already increased dramatically.”

Another study lead writer, Chris Field of Stanford University, said scientists aren’t quite sure which weather disaster will be the biggest threat because wild weather interacts with economics and where people live. Society’s vulnerability to natural disasters, aside from climate, has also increased, he said.

Field told The Associated Press in an interview that “it’s clear that losses from disasters are increasing. And in terms of deaths, “more than 95 percent of fatalities from the 1970s to the present have been in developing countries,” he said.

Losses are already high, running at as much as $200 billion a year, said Michael Oppenheimer of Princeton University, a study author.

Science has progressed so much in the last several years that scientists can now attribute the increase in many of these types of extreme weather events to global warming with increased confidence, said study author Thomas Stocker at the University of Bern.

Scientists were able to weigh their confidence of predictions of future climate disasters and heat waves were the most obvious. The report said it is “virtually certain” that heat waves are getting worse, longer and hotter, while cold spells are easing.

The report said there is at least a 2-in-3 chance that heavy downpours will increase, both in the tropics and northern regions, and from tropical cyclones.

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