Carbon is the currency of how you measure climate change, but water will be the teeth.

We need to have a plan equal to the challenge.

If we do not act to curb climate change immediately, we will leave our children and grandchildren an unrecognizable planetIt is the poor, those least responsible for climate change and least able to afford adaptation, who would suffer the most.

Water and sanitation has not had the same kind of champion that global health, and even education, have had.

When you're working on development issues, optimism is not always based on rational analysis, often it is a moral choice.

We have to find climate-friendly ways of encouraging economic growth. The good news is we think they exist.

We will never end poverty if we don't tackle climate change.