Methane flux in North Sea varies with tides, study shows

Methane, a strong greenhouse gas that naturally escapes from the bottom of the North Sea, is affected by the pressure of high or low tide. Methane emissions from the sea floor can be just easily three times as much or as ...

Mars likely had cold and icy past, new study finds

The question of whether Mars ever supported life has captivated the imagination of scientists and the public for decades. Central to the discovery is gaining insight into the past climate of Earth's neighbor: Was the planet ...

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