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Tree rings help forecast extreme climate

Last Updated: Sunday, February 17, 2013, 10:56

An analysis of tree-rings can enable scientists to get an insight into the past and forecast extreme weather events.

Christmas trees absorb super greenhouse gas methane

Last Updated: Tuesday, December 25, 2012, 16:07

Christmas trees are absorbing methane, a super greenhouse gas that they were previously suspected of emitting, scientists claim.