News tagged with 21st century

Warming turns tundra to forest

(Phys.org) -- In just a few decades shrubs in the Arctic tundra have turned into trees as a result of the warming Arctic climate, creating patches of forest which, if replicated across the tundra, would significantly accelerate ...

dateJun 04, 2012 in Earth Sciences
shares0 comments 125

Today's severe drought, tomorrow's normal

(PhysOrg.com) -- While the worst drought since the Dust Bowl of the 1930s grips Oklahoma and Texas, scientists are warning that what we consider severe drought conditions in North America today may be normal for the continent ...

dateDec 06, 2011 in Earth Sciences
shares0 comments 8