Global warming, along with the cutting and burning of forests and other critical habitats, is causing the loss of living species at a level comparable to the extinction event that wiped out the dinosaurs 65 million years ago. That event was believed to have been caused by a giant asteroid. This time it is not an asteroid colliding with the Earth and wreaking havoc: it is us.

A zebra does not change its spots.

Consider a clock thermostat, and set it so that you're not using energy when you don't need it, when you're out of your house.

American democracy is in grave danger from the changes in the environment in which ideas either live and spread or wither and die.

I was honored to serve as an elected official for twenty-four years of my life. But right now, I believe our democratic processes have been hacked. They are not serving the best interests of the American public.

I smoked pot in college and in the Army.

The Himalayan Glaciers on the Tibetan Plateau have been among the most affected by global warming. The Himalayas...provide more than half of the drinking water for 40% of the world's population...Within the next half-century, that 40% of the world's people may well face a very serious drinking water shortage, unless the world acts boldly and quickly to mitigate global warming.