Human activities are drying out the Amazon: NASA study

A new NASA study shows that over the last 20 years, the atmosphere above the Amazon rainforest has been drying out, increasing the demand for water and leaving ecosystems vulnerable to fires and drought. It also shows that ...

Atmospheric variability and surface temperatures

This paper investigates the impact that the four principal patterns of Southern Hemisphere (SH) atmospheric circulation variability have on Antarctic surface air temperature (SAT): 1) the southern baroclinic annular mode ...

Circulation changes off West Antarctica

The Amundsen Sea Low (ASL) is a climatological low pressure system located over the southern Pacific Ocean, off the coast of West Antarctica. Atmospheric variability in this region is larger than anywhere else in the Southern ...

2012 Great Plains drought not caused by climate change

From May to July 2012, the Great Plains region of the western United States faced a powerful and unpredicted drought. Following 7 months of normal rainfall, the drought was one of the largest deviations from seasonal precipitation ...

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