Tree deaths have doubled across the western US

(PhysOrg.com) -- A new study led by the U.S. Geological Survey and involving the University of Colorado at Boulder indicates tree deaths in the West's old-growth forests have more than doubled in recent decades, likely from ...

A finer picture of global migration reveals complex patterns

While public discussions often focus on climate change driving people to emigrate, new research published in Nature Human Behaviour shows that net-migration patterns around the world are actually more strongly linked with ...

Black death mortality not as widespread as believed

The black death, which plagued Europe, West Asia and North Africa from 1347 to 1352, is the most infamous pandemic in history. Historians have estimated that up to 50 percent of Europe's population died during the pandemic ...

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