Protecting dozens of major coastal cities from future flooding will be challenging enough-rebuilding major coastal cities destroyed by super-hurricanes will be an almost impossible task.

Would PBS go so far as to give air time to an even more extreme kind of disinformer, a Holocaust denier?

We have been getting rich by depleting all our natural stocks - water, hydrocarbons, forests, rivers, fish and arable land - and not by generating renewable flows.

The best thing about improvements in health care is that all the climate-change deniers are now going to live long enough to see how wrong they were.

Conservative Denyers and Delayers are the main reason America lacks the consensus and the political will to take up the fight against catastrophic climate change.

Bush and Inhofe will go down in history with other leaders such as Herbert Hoover and Neville Chamberlain who were blind to their nation's gravest threats.

In 2003... the White House conspired with an oil-company funded think tank to block a major government scientific report that sought to spell out the dangers of climate change to Americans.

Time is short. We have at most a decade to sharply reverse course.

The science is crystal clear: we humans are the primary cause of global warming, and we face a bleak future if we fail to act quickly.

The last time Earth was 1°C warmer than today, sea levels were 20 feet higher.

Do believe that if we fail to act in time, it will be the single biggest regret any of us has at the end of our lives.

You can't stop the futureYou can't rewind the pastThe only way to learn the secret...is to press play.

Habit: A shackle for the free.

A good portion of speaking will consist in knowing how to lie.

Whether it's just the career path of doing independent music, being an artist, however you want to pigeon-hole it, it creates a certain type of character.

I wasn't funny as a kid. I remember enjoying comedians, but I never understood it was a job choice or a profession.

nations decay from within more often than they surrender to outward assault.

We are on the precipice of climate system tipping points beyond which there is no redemption.

Forget about finding your passion. Instead, focus on finding big problems.

Prudence is one of the virtues which were called cardinal by the ancient ethical writers.

The blood of youth burns not with such excess as gravity's revolt to wantonness.