As many know, the Chinese expression for "crisis" consists of two characters side by side. The first is the symbol for "danger," the second the symbol for "opportunity."

Researchers at the Naval Postgraduate School have told us that the entire Arctic ice cap may totally disappear in summer in as little as five years if nothing is done to curb emissions of greenhouse gas pollution.

The symbolism - and the substantive significance - of planting a tree has universal power in every culture and every society on Earth, and it is a way for individual men, women and children to participate in creating solutions for the environmental crisis.

Atheists have just as much of a right to the public discourse as any ... people of any religious faith in this country.

It is my deep personal conviction that abortion is wrong. I hope that some day we will see the current outrageously large number of abortions drop sharply...let me assure you that I share youR belief that innocent human life must be protected.

...the debate among the scientists if over. There is no more debate. We face a planetary emergency. There is no more scientific debate among serious people who've looked at the science...Well, I guess in some quarters, there's still a debate over whether the moon landing was staged in a movie lot in Arizona, or whether the Earth is flat instead of round.

You can say the Earth is flat, but it doesn't mean you're going to fall off the edge.