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.

Why is it that when it comes to our most cherished social goal [health care], we not only tolerate poor execution, sometimes we even celebrate it?

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

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

There will be water and food fights everywhere.

We need to have a plan equal to the challenge.

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