Yale Environment 360: Up to half of the recent climate change in Greenland and surrounding regions which have warmed at roughly twice the pace of the rest of the planet since 1979 may be due to natural climate variations that originate in the tropical Pacific and are not connected with the overall warming of the Earth, a new study says. Still, at least half the warming remains attributable to rising global carbon dioxide emissions, according to research published in the journal Nature. Climate data and advanced computer...