When people flirt with despair about the future, they are less likely to take the actions necessary to safeguard it, focusing instead on the short-term.

I did very extensive diligence on Al Jazeera English, the network from which Al Jazeera America is going to be derived, and it's really very clear that they have long since established a reputation for excellence and integrity and objectivity.

The conversation on global warming has been stalled because a shrinking group of denialists fly into a rage when it's mentioned.

When you have the facts on your side, argue the facts. When you have the law on your side, argue the law. When you have neither, holler.

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.

Humanity is sitting on a time bomb. If the vast majority of the world's scientists are right, we have just ten years to avert a major catastrophe that could send our entire planet's climate system into a tail-spin of epic destruction involving extreme weather, floods, droughts, epidemics and killer heat waves beyond anything we have ever experienced - a catastrophe of our own making.

The day I made that statement, about the inventing the internet, I was tired because I'd been up all night inventing the Camcorder.