Wednesday, August 9, 2017

Yes, you can blame climate change for extreme weather

In a new report, scientists show how climate change shaped several extreme weather events

In the midst of a stifling Washington, D.C. summer two years ago, former President Obama appeared in the White House to paint a grim picture of the challenge global warming posed to the country.

The August 2015 press conference, at which Obama announced the Clean Power Plan, was supposed to be held on the White House’s South Lawn, but it was moved indoors at the last moment, after officials decided it was too hot to do the event outside. Obama might have been tempted to reference D.C.’s heat wave in his remarks that day on global warming, but the President chose his words judiciously — careful not to overstep the scientific understanding of climate change and extreme weather. “While we can’t say any single weather event is entirely caused by climate change, we’ve seen stronger storms, deeper droughts, longer wildfire seasons,” he said.

For years, careful climate scientists — and the politicians like Obama who listened to them — have avoided saying that any particular event was directly caused by climate change, even as they called for urgent action to address the issue. But researchers now say they can use a variety of approaches to show that climate change is all but certainly causing and worsening extreme weather events…

Source: Climate Change Report Highlights Threat of Extreme Weather | Time.com


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