The hurricanes we are seeing are indeed a direct result of climate change and it's no longer something we'll see in the future, it's happening now.

What we're seeing right now in global climate temperature is a signature of climate change. The large bulk of the scientific community say what we are seeing now is linked directly to greenhouse gases.

The measurements show long-term trends. Glaciers react to climate change, and warmer temperatures in the Alps are reflected in the results.

If we let climate change run its course, this could be a fairly typical winter 30 or 40 years from now.

We're vulnerable to begin with, and climate change exacerbates the vulnerability.

The committee has held hearings on climate change issues for nearly 30 years. The first one was in 1978 when I was still on staff. It's time to act.