Tuesday, June 27, 2006
Earth's Climate Warming Abruptly, Scientist Says
By Doug Struck
Washington Post Staff Writer
Tuesday, June 27, 2006; Page A03
COLUMBUS, Ohio -- Earth's climate is undergoing an abrupt change, ending a cooler period that began with a swift "cold snap" in the tropics 5,200 years ago that coincided with the start of cities, the beginning of calendars and the biblical great flood, a leading expert on glaciers has concluded.
The warming around Earth's tropical belt is a signal suggesting that the "climate system has exceeded a critical threshold," which has sent tropical-zone glaciers in full retreat and will melt them completely "in the near future," said Lonnie G. Thompson, a scientist who for 23 years has been taking core samples from the ancient ice of glaciers.
Thompson, writing with eight other researchers in an article published Monday in the Proceedings of the National Academy of Sciences, said the ice samples show that the climate can and did cool quickly, and that a similarly abrupt warming change started about 50 years ago. Humans may not have the luxury of adapting to slow changes, he suggests.
Washington Post Staff Writer
Tuesday, June 27, 2006; Page A03
COLUMBUS, Ohio -- Earth's climate is undergoing an abrupt change, ending a cooler period that began with a swift "cold snap" in the tropics 5,200 years ago that coincided with the start of cities, the beginning of calendars and the biblical great flood, a leading expert on glaciers has concluded.
The warming around Earth's tropical belt is a signal suggesting that the "climate system has exceeded a critical threshold," which has sent tropical-zone glaciers in full retreat and will melt them completely "in the near future," said Lonnie G. Thompson, a scientist who for 23 years has been taking core samples from the ancient ice of glaciers.
Thompson, writing with eight other researchers in an article published Monday in the Proceedings of the National Academy of Sciences, said the ice samples show that the climate can and did cool quickly, and that a similarly abrupt warming change started about 50 years ago. Humans may not have the luxury of adapting to slow changes, he suggests.
Thursday, June 22, 2006
Thawing permafrost
Thawing permafrost may further increase climate warming: study
Subscribe to Posts [Atom]