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In 2010, a massive, magnitude-8.8 earthquake struck the south central coast of Chile, rupturing beaches and launching a tsunami that rode inland with devastating effect. In an instant, whole sections of the coastline were transformed, with large swaths of sand and rock lifted from beneath the waves.

By Nicola Jones of Nature magazine This month, scientists will test a new way to extract methane from beneath the frozen soil of Alaska: they will use waste carbon dioxide from conventional wells to force out the desired natural gas. The pilot experiment will explore the possibility of `mining' from gas hydrates: cages of water ice that hold molecules of methane