A lot of young people dont think they can make a difference. Thats really what I am at Dartmouth to do. Im there to tell the young people, Look, a few committed souls can change the world.

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

A lot of young people dont think they can make a difference. Thats really what I am at Dartmouth to do. Im there to tell the young people, Look, a few committed souls can change the world.

What happens when corn and wheat prices rise is that we see real increases in malnutrition and under-nutrition. And when children are malnourished, their brain development actually slows down and is affected. So this is not just a short-term impact.

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.

Unless you invest in people, you are not going to see growth in the long term, the medium term, and maybe even the short term.