Many trees planted around a home reduce the need for air conditioning.

We have to get out of the mind-set of saying, "No matter how hard we try, we will have accidents," and into "We will not have accidents."

Its important not to focus so much on the statistics, but [on people's] perceptions.

The critics don't build great cities

Many trees planted around a home reduce the need for air conditioning.

I have flown ValuJet. ValuJet is a safe airline, as is our entire aviation system.

I do not underestimate the difficulty of the challenge that global climate change presents to us. It will take a significant effort and the best talent and technology we have to solve the problem.