The US is responsible for 25 percent of the world's greenhouse gas emissions. It should take responsibility for leading the way.

By downplaying clear targets and frameworks, ... the Prime Minister is ignoring calls from UK companies who want a clear framework to operate within now. There has been a lot of discussion about the false choice between targets and technologies, but the reality is that without both we cannot achieve either.

Nature is not a drag on growth - its protection is an unavoidable prerequisite for sustaining economic development.

The coming week in The Hague may prove to be one of the most important in the three-and-a-half-billion year history of life on earth.

From Indian vultures to Chinese bees, Nature provides the 'natural services' that keep the economy going

We are developing all sorts of technologies based on what we have learnt from birds, animals and soils. Pollination is worth £billions. But it also highlights how nature is so interconnected.

The wealthiest 300 people have greater riches than the three billion poorest. The three wealthiest people have greater riches than the 48 poorest countries put together. With only limited environmental space to accommodate the expected 9 billion human inhabitants of the world by 2050, such disparities in consumption are clearly not sustainable