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.

I take no pleasure in the fact that the scientific predictions I’ve relayed to popular audiences turn out to be true.

George W. Bush promised us a foreign policy with humility. Instead, he has brought us humiliation in the eyes of the world. He promised to restore honor and integrity to the White House. Instead, he has brought deep dishonor to our country and built a durable reputation as the most dishonest president since Richard M. Nixon.

John McCain is now openly endorsing the policies of the Bush-Cheney White House and promising to actually continue the same policies over again? Hey, I believe in recycling but that's ridiculous.

I think the fact that within the bitcoin universe an algorithm replaces the functions of the government is actually pretty cool. I am a big fan of bitcoin.

It's an important point, and every little bit helps not least because those who make those kinds of changes are more likely to make their voices heard as citizens. But the ultimate solutions are going to come through policies.

When you look at what has happened over the last few decades the natural fluctuations point in the opposite direction of what has actually occurred. When they run the models and plug in the man-made pollution, the correspondence is exact. Beyond that, the scale of natural fluctuations has now been far exceeded by the impact of man-made global warming.