Almost 200 countries have agreed to the terms of a new international deal to tackle climate change following United Nations talks in Paris.
Cheers and applause broke out as the agreement - which includes a pledge to keep temperature rises "well below" 2C - was officially passed.
Prime Minister David Cameron said the deal had "secured our planet for many, many generations to come."
There were emotional scenes at the Paris climate talks as nearly 200 nations finally agreed a deal to attempt to keep temperature rises "well below" 2C.
That excitement was understandable given the historic deal has been 20 years in the making:
Video report by ITV News science correspondent Alok Jha.
George Osborne was warned he could be breaking law with cuts to investment in renewable and green energy
Prime Minister David Cameron has welcomed the final approval on an historic international deal to tackle climate change.
WWF-UK's chief executive, David Nussbaum, writes for ITV News after the release of the final draft of the Paris Agreement on climate change.