Delegates from almost 200 countries have extended until 2020 the Kyoto Protocol for fighting climate change.
"It's not just about paving the way for 2020, it is about increasing ambitions now in the run-up to 2020," Davey said. "And I think there has been some steps in that direction. So I think that is positive and I know some people will be disappointed and would want more. The U.K. and the EU have always been on the ambitious side of things, but we are moving as a world and it's important that the world moves in the right direction and it did here in Doha."
However, environmentalists, including Greenpeace activist Kumi Naidoo, said the new deal would do little to halt a rise in temperatures or avert more natural disasters.
"Our governments must realize that this failure is a betrayal of the people in the Philippines and around the world that have faced climate impacts now, today, and will continue in the days to come," Naidoo said. "But what is at stake here is not some ethereal thing called the planet, the climate, the environment. But what is at stake here is selling down our children's and grandchildren's futures."