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You know, once something freezes, it's solid. That's the key to the arctic - they didn't fear the cold, they made use of it.

Some studies suggest that the Arctic Ocean may be ice-free by the end of the century.

The entire North Polar ice cap is disappearing before our very eyes. It's been the size of the continental United States for the last 3 million years and now 40 percent is gone and the rest of it is going.

Ice shelves in general have episodic carvings and there can be large icebergs breaking off - I'm talking 100km or 200km long - every 10 or 20 or 50 years.

I'm saying, Come on, the global warming thing? How did the ice melt during the ice ages? Was the dinosaurs driving SUVs around back then?

You can't tie a rope around the ice sheet. You can't build a wall around the ice sheets.

In the Andes and the Alps, I have seen melting glaciers. At both of the Earth's Poles, I have seen open sea where ice once dominated the horizon.

We are not exposed to ice much in Florida.

There's nothing pretty about ice. Ice grows nothing. But we've got this in our minds that we've got to make everything cold.