Scientists to announce "Doomsday Clock" time

Scientists behind a "Doomsday Clock" that measures the likelihood of a global cataclysm are set to announce Tuesday whether civilization is any closer or farther from disaster.

Plants let chloroplasts know the time

(Phys.org) —Plant cells communicate information about the time of day to their chloroplasts, the part of their cells that underpins all agricultural productivity on Earth, researchers at the University of Bristol have demonstrated ...

The nuclear, biological and climate threat - 2011 reviewed

In this special issue of the Bulletin of the Atomic Scientists, published by SAGE, experts reflect on 2011 and highlight what to look out for in 2012 in the areas of nuclear energy, nuclear weapons, biosecurity, and climate ...

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