I've never really had much of a career plan, and interesting opportunities kept cropping up.

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

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.

The scientific evidence is now overwhelming: climate change presents very serious global risks, and it demands an urgent global response.

Give up meat to save the planet.

It's very important that there should be cross-fertilisation between government and academia. Both parties can benefit from having a better understanding of how the other works.

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