The five warmest years over the last century occurred in the last eight years.

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

Interference with communications of science to the public has been greater during the current administration than at any time in my career.

...99 percent confident that the world really was getting warmer and that there was a high degree of probability that it was due to human-made greenhouse gases.

We're handing them [young people & future generations] a climate system which is potentially out of their control. We're in an emergency: you can see what's on the horizon over the next few decades with the effects it will have on ecosystems, sea level and species extinction

The five-year mean global temperature has been flat for the last decade

We have known since the 1800s that carbon dioxide traps heat in the atmosphere. The right amount keeps the climate conducive to human life.