Elusive El Nino challenges NOAA's 2012 US winter outlook
(Phys.org)—The western half of the continental U.S. and central and northern Alaska could be in for a warmer-than-average winter, while most of Florida might be colder-than-normal December through February, ...
Cold spell gripped Europe 3,000 years before 'Little Ice Age,' says study
(Phys.org) -- Human civilization arose during the relatively balmy climate of the last 10,000 years. Even so, evidence is accumulating that at least two cold spells gripped the northern hemisphere during this ...
Recent droughts could be new normal, may lead to massive tree death, study suggests
Evidence uncovered by a University of Tennessee, Knoxville, geography professor suggests recent droughts could be the new normal. This is especially bad news for our nation's forests.
Study finds severe climate jeopardizing Amazon forest
(Phys.org)—An area of the Amazon rainforest twice the size of California continues to suffer from the effects of a megadrought that began in 2005, finds a new NASA-led study. These results, together with ...
Monsoon failure key to long droughts in Southwest
Long-term droughts in the Southwestern North America often mean failure of both summer and winter rains, according to new tree-ring research from a University of Arizona-led team.
Researchers measure cavitation noise in trees
Extreme weather events fuel climate change
When the carbon dioxide content of the atmosphere rises, the Earth not only heats up, but extreme weather events, such as lengthy droughts, heat waves, heavy rain and violent storms, may become more frequent. ...
Pollution in Northern Hemisphere helped cause 1980s African drought
Decades of drought in central Africa reached their worst point in the 1980s, causing Lake Chad, a shallow lake used to water crops in neighboring countries, to almost dry out completely.
Roots breakthrough for drought-resistant rice
Japanese biotechnologists on Sunday said they had developed a rice plant with deeper roots that can sustain high yields in droughts that wipe out conventional rice crops.
Researchers discover protein that helps plants tolerate drought, flooding, other stresses
A team including Dartmouth researchers has uncovered a protein that plays a vital role in how plant roots use water and nutrients, a key step in improving the production and quality of crops and biofuels.
US corn yields are increasingly vulnerable to hot, dry weather, study shows
Corn yields in the central United States have become more sensitive to drought conditions in the past two decades, according to Stanford research.
Scientific paper challenges assumptions about bark beetles' link to wildfires
Don't blame bark beetles for catastrophic wildfires such as the blaze that blackened more than 23,000 acres of Kittitas County in Washington state last summer, some scientists say.
Effects of interannual climate variability on tropical tree cover
Tree cover in the tropics will likely change in surprising ways as climate change increases the frequency of extreme rainfall events, according to a study by scientists from Wageningen University published today in Nature Cl ...
Study provides new insights on drought predictions in East Africa
(Phys.org)—With more than 40 million people living under exceptional drought conditions in East Africa, the ability to make accurate predictions of drought has never been more important. In the aftermath ...