Africa's carbon sink capacity is shrinking

The population of Africa, the second-largest continent in the world, currently sits at about 1.4 billion, but is set to exceed 2 billion by 2040. This means greater swaths of land than ever before are being used for agriculture, ...

More and more emerging diseases threaten trees around the world

Diseases are among the major causes of tree mortality in both forests and urban areas. New diseases are continually being introduced, and pathogens are continually jumping to new hosts, threatening more and more tree species. ...

Researchers categorize foreshocks for large earthquakes

Seismologists agree that foreshocks are the most widely identified signal of an upcoming mainshock earthquake. But do these foreshock sequences have distinctive characteristics that separate them from aftershock sequences, ...

UN aims to deliver draft plastics treaty by year's end

The world should see the first draft of a highly anticipated and much needed international treaty to combat plastic pollution by the end of November, 175 nations gathered in Paris decided Monday after five days of grueling ...

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