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Increased melting of the Greenland Ice Sheet and other ice losses worldwide have helped to move the North Pole several centimeters east each year since 2005
The rate of aftershocks following the August 23, 2011, quake increased sharply as Irene passed by, suggesting that ground disturbances from large storms might be strong enough to prompt tremors
Pressure changes cause the precious metal to deposit each time the crust moves, a new study finds. The insight suggests that remote sensing could be used to find new deposits in rocks where fault jogs are common
The tagged animals traveled to and took measurements from a fourth known source of bottom water, a crucial oceanic heat sink
Contraceptives and antidepressants can reduce fish reaction times and reproductive rates
The landmark environmental law has spurred significant progress but the nation's waterways now are threatened by sea-level rise and ocean acidification—unknown in 1972
Canada and the U.S. are starting to restrict the use of blood-thinning rat poison to avoid its accumulation in birds of prey and other animals
An ancient text suggests that an eighth-century jump in carbon 14 levels in trees could be explained by a previously unrecognized supernova explosion
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