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Dead Ahead : Less Rainfall for Drought-Sensitive Southern Hemisphere Regions ?

National Science Foundation (NSF) May 18, 2012

Dead Ahead : Less Rainfall for Drought-Sensitive Southern Hemisphere Regions ?

Increasing aridity could lead to major problems for societies and ecosystems in already-arid places

Source : National Science Foundation (NSF) May 18, 2012

Hundreds of species of unique South African plants may be affected by increasing drought.

Warming climate may mean less rainfall for drought-sensitive regions of the Southern Hemisphere, according to results just published by an international research team.

Geoscientist Curt Stager of Paul Smith’s College in Paul Smiths, N.Y., and colleagues found that rainfall in South Africa during the last 1,400 years was affected by temperature—with more rain falling during cool periods and less during warm ones.

The findings, published in the journal Climate of the Past, are supported by the National Science Foundation (NSF). "The link between climate change and rainfall in certain latitudes can have large effects on ecosystems," said Paul Filmer, program officer in NSF’s Directorate for Geosciences.

"Plants, for example, may be able to grow in a wider area, or conversely, be squeezed up a mountain or onto a peninsula. When the affected ecosystem supports a food crop, that can mean a bonanza—or a famine."

Pour en savoir plus (National Science Foundation (NSF)

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