News
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HumansPain relief to believe in
Religious believers shown pictures that evoke spiritual responses display brain activity that may contribute to feeling relief from physical pain, a new study finds.
By Bruce Bower -
ClimateHeat waves stunt grassland growth
An abnormally hot year can significantly suppress growth in grasslands, a stifling effect that lingers well into the next year even if temperatures return to normal. It can also hinder how well the grasslands absorb carbon dioxide from the atmosphere.
By Sid Perkins -
HumansThe presidential candidates on science
The Science Debate 2008 team sent science and technology questions to Sens. John McCain and Barack Obama. Find out how they answered.