We will not overcome world poverty unless we manage climate change successfully. I've spent my life as a development economist, and it's crystal clear that we succeed or fail on winning the battle against world poverty and managing climate change together. If we fail on one, we fail on the other.

Fortunately poorer countries, such as China, are showing leadership and beginning to demonstrate to the world how to invest in low-carbon growth.

Climate change represents the greatest and widest-ranging market failure ever seen

There is still time to avoid the worst impacts of climate change, if we take strong action now.

Adaptation is the only means to reduce the now-unavoidable costs of climate change over the next few decades

Give up meat to save the planet.

The greenhouse effect is something you can observe experimentally - and most people have observed the greenhouse effect themselves, in greenhouses. Yes?