If we don’t act by 2010, it now seems virtually impossible that we can keep global warming change below 2 degrees Celsius. Climate scientists believe that’s a baseline number and temperature increase above it will inflict major changes to Earth’s environment.
Among those changes? Major dead zones in the world’s oceans, enough to seriously reduce the plentitude of the oceans as a world food source.
More on the imperative need to act now is here, from Susan Solomon of the National Oceanic and Atmospheric Administration.
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