James Hansen
James Hansen
James Edward Hansenis an American adjunct professor in the Department of Earth and Environmental Sciences at Columbia University. He is best known for his research in climatology, his 1988 Congressional testimony on climate change that helped raise broad awareness of global warming, and his advocacy of action to avoid dangerous climate change. In recent years he has become a climate activist to mitigate the effects of climate change, on a few occasions leading to his arrest...
NationalityAmerican
ProfessionScientist
Date of Birth29 March 1941
CountryUnited States of America
Adding CO2 to the air is like throwing another blanket on the bed.
I tend to be naive and gullible, I guess, but I try to believe that governments believe what they say.
If we drive our fellow species to extinction, we will leave a far more desolate planet for our descendants than the world we inherited from our elders.
The question is not whether to close the parks, but how to accomplish this goal.
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.
We have known since the 1800s that carbon dioxide traps heat in the atmosphere. The right amount keeps the climate conducive to human life.