The scientists are really scared. Their [global warming] observations over the past two or three years suggest that everything is happening a lot faster than their climate models predicted.

There is a point of no return after which warming becomes unstoppable - and we are probably going to sail right through it. It is the point at which anthropogenic (human-caused) warming triggers huge releases of carbon dioxide from warming oceans, or similar releases of both carbon dioxide and methane from melting permafrost, or both. Most climate scientists think that point lies not far beyond 2 degrees C hotter (3.6 degrees F).

But we are almost certainly going to miss our [global warming] deadline. We cannot get the 10 lost years back, and by the time a new global agreement to replace the Kyoto accord is negotiated and put into effect, there will probably not be enough time left to stop the warming short of the point where we must not go.

The scientists are really scared. Their [global warming] observations over the past two or three years suggest that everything is happening a lot faster than their climate models predicted.

The first and most important impact of climate change on human civilisation will be an acute and permanent crisis of food supply. Eating regularly is a non-negotiable activity and countries that cannot feed their people are unlikely to be reasonable about it.

It doesn't matter what we think we are there [in Afghanistan] for; it matters what they think. They think we are invaders.

Now, for the moment, we are safe. The only kind of international violence that worries most people in the developed countries is terrorism: from imminent heart attack to a bad case of hangnail in fifteen years flat. We are very lucky people--but we need to use the time we have been granted wisely, because total war is only sleeping. All the major states are still organized for war, and all that is needed for the world to slide back into a nuclear confrontation is a twist of the kaleidoscope that shifts international relations into a new pattern of rival alliances.