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 ...

Science lacking on whether death penalty deters murder

Scientific research to date provides no useful conclusion on whether the death penalty reduces or boosts the murder rate, said a report by the US National Academy of Sciences on Wednesday.

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 ...

2011 vehicle models with highest and lowest death rates

The Insurance Institute for Highway safety examined fatalities involving 2011 model year vehicles, looking at how many driver fatalities occurred in a particular model over the course of a year of operation, expressed as ...

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