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Nasa launches carbon dioxide observer

2 July 2014 Last updated at 11:58 BST

Nasa has launched a mission dedicated to measuring carbon dioxide (CO2) from space.

The Orbiting Carbon Observatory-2 (OCO-2) will help pinpoint the key locations on the Earth's surface where the gas is being emitted and absorbed.

A Delta rocket carrying the satellite lifted clear of the Vandenberg Air Force Base in California at 02:56 local time (09:56 GMT; 10:56 BST).

The ride to orbit is expected to take just under the hour.

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