The water issue is critically related to climate change. People say that carbon is the currency of climate change. Water is the teeth.

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

It's up to the states to make up their own minds about what to do about climate change.

I definitely wouldn't want people to use climate to take humans off the hook. But climate change is a regulator in the population cycle going up and down.

I like to change people's sense of what's possible.

The measurements show long-term trends. Glaciers react to climate change, and warmer temperatures in the Alps are reflected in the results.