I've tried to be a straight scientist doing the science and reporting it as best I can.

Scientists will say we can't blame global warming for any single event. In a sense that's right, but the fact that the frequency and intensity of these events is increasing you can blame on global warming.

It would be immoral to leave young people with a climate system spiraling out of control.

As you get more global warming, you should see an increase in the extremes of the hydrological cycle - droughts and floods and heavy precipitation.

The 5-year mean global temperature has been flat for the last decade, which we interpret as a combination of natural variability and a slow down in the growth rate of net climate forcing.

What we are doing to the future of our children, and the other species on the planet, is a clear moral issue.

As a government employee, you can't testify against the government.