ABC The Second of Four Major Reports on Climate Change Says It's a Different World Already
By BILL BLAKEMORE
April 2, 2007 — - Within two or three decades, there could be one and a half billion people without enough water, according to a new report on the impacts of global warming.
Such droughts would produce "refugee crises like we've never seen," as one of the study's lead authors told ABC News.
Scientists working on the "Impacts, Adaptation and Vulnerability" report have been telling ABC News for months that its findings, once public, would be alarming. The report is being prepared by the IPCC, the Intergovernmental Panel on Climate Change, made up of 2,500 experts in the field.
Scientists are hammering out that report's final wording in Brussels and are due to announce it on Friday.
But its basic findings, they say, won't change.
Drafts of the IPCC report depict a world already changed dramatically in the past 35 years by manmade global warming, with increasing drought, heavy precipitation and flooding.
It also says humankind is in for much worse in the next few decades.
The IPCC scientists are finalizing one chart that projects how, with each degree of future warming, Earth's natural life-support systems break down more and more.
It predicts mountain glaciers and snow-pack melting away around the world, faster than scientists thought possible ... full text