Ban Ki-Moon urges restraint as Pyongyang announces plan to reopen nuclear reactor

Bacteria discovered in Mariana Trench, a gigantic chasm in the seabed which is big enough to swallow Mount Everest entirely

New discoveries are the clearest indicator yet that life could once have existed on the red planet

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The Government faces a cross-party rebellion that could see MPs back a plan to make electricity generation almost entirely green by 2030.

The UN created the world’s most effective offset mechanism but astonishingly fails to use it for its own carbon emissions. This has to change

Mercaptan is also known as methanethiol and is a harmless but pungent-smelling gas which has been described as having the stench of rotting cabbages or smelly socks.

A massive cosmic explosion in deep space sent out a pulse of high-energy radiation that hit the Earth between the years 774AD and 775AD when the emperor Charlemagne ruled much of Western Europe, scientists have found.

Cutting 'black carbon' emissions could help to cool the planet, according to scientists

The global carbon market shrank by more than a third to €61bn (£49bn) in 2012, the lowest level in its five-year history, fuelling concerns that key permit schemes designed to force down CO2 emissions are proving ineffective.

Autumn Statement

The Curiosity Mars rover has discovered something interesting in a scoop of ruddy sand, but Nasa scientists say they're not quite sure what it means.

Modest expectations marked the start of UN climate talks Monday, as negotiators and experts all warned that the two-week session would only lay the groundwork for a potentially ambitious global-warming pact by the end of the decade.