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The Case of the Dying Aspens
December 12, 2011 — Over the past 10 years, the death of forest trees due to drought and increased temperatures has been documented on all continents except Antarctica. This can in turn drive global warming by reducing ... > full story -
Ancient Dry Spells Offer Clues About the Future of Drought
December 5, 2011 — As parts of Central America and the US Southwest endure some of the worst droughts to hit those areas in decades, scientists have unearthed new evidence about ancient dry spells that suggest the ... > full story -
Texas Drought Visible in New National Groundwater Maps
November 30, 2011 — The record-breaking drought in Texas that has fueled wildfires, decimated crops and forced cattle sales has also reduced levels of groundwater in much of the state to the lowest levels seen in more ... > full story -
Sunlight in Tropical Forest Driving Force Behind Ecological Niches of Tree Species
November 28, 2011 — Not water, but sunlight is the main factor in determining the growth of the hundreds of tree species in tropical forests. The variation in physiological characteristics between tree species explains ... > full story -
Sea Change Can Forecast South American Wildfires
November 10, 2011 — Tiny temperature changes on the Atlantic and Pacific oceans provide an excellent way to forecast wildfires in South American rainforests, new research ... > full storyMore: -
Scientists Find Evidence of Ancient Megadrought in Southwestern U.S.
November 6, 2011 — A new study has revealed a previously unknown multi-decade drought period in the second century A.D. The findings give evidence that extended periods of aridity have occurred at intervals throughout ... > full story -
Genome of 'Orphan Crop' Pigeonpea Cracked
November 6, 2011 — Once referred to as an "orphan crop" mainly grown by poor farmers, pigeonpea is now set to join the world's league of major food crops with the completion of its genome ... > full story -
Climate Change Causing Massive Movement of Tree Species Across the West
November 3, 2011 — A huge "migration" of trees has begun across much of the West due to global warming, insect attack, diseases and fire, and many tree species are projected to decline or die out in regions where they ... > full story -
Human-Caused Climate Change Major Factor in More Frequent Mediterranean Droughts
October 28, 2011 — Wintertime droughts are increasingly common in the Mediterranean region, and human-caused climate change is partly responsible, according to a new analysis. In the last 20 years, 10 of the driest 12 ... > full story -
Severe Drought, Other Changes Can Cause Permanent Ecosystem Disruption
October 13, 2011 — An eight-year study has concluded that increasingly frequent and severe drought, dropping water tables and dried-up springs have pushed some aquatic desert ecosystems into "catastrophic regime ... > full story
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