141 Quotes by James Hansen

Talking nice about sun and wind and green jobs is just greenwash.

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

It has become very difficult for anyone to argue that observed global warming is natural variability. We have good reason for being able to say that the world will be warmer by about a quarter of a degree in the next decade. It's the same reason we had 10 years ago when we said that the 1990s would be warmer than the 1980s: The planet is out of equilibrium.

As species are exterminated by shifting climate zones, ecosystems can collapse, destroying more species.

If we fail to act, we will end up with a different planet.

The urgency derives from the nearness of climate tipping points.

A level of no more than 350 ppm is still feasible, with the help of reforestation and improved agricultural practices, but just barely - time is running out.

We have at most ten years—not ten years to decide upon action, but ten years to alter fundamentally the trajectory of global greenhouse emissions.

Some Democrats deserve to be criticized.