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The global price of ivory increased tenfold since its 1989 trade ban by the Convention on the International Trade in Endangered Species (CITES), new research has found.

Studies of how global change is impacting marine organisms have long focused on physiological effects—for example an oyster’s decreased ability to build or maintain a strong shell in an ocean that is becoming more acidic due to excess levels of carbon dioxide.

About a dozen megadroughts struck the American Southwest during the 9th through the 15th centuries, but then they mysteriously ceased around the year 1600.

Imagine you are a farmer struggling to keep up with production demands because of the increasingly stressful climate.

Many people have a clear picture of the "Little Ice Age" (from approx. 1300 to 1850).