Until the public demands otherwise, the policy makers will continue to serve their financiers.

I think we have a very brief window of opportunity to deal with climate change. No longer than a decade at most.

Recent warming coincides with rapid growth of human-made greenhouse gases. The observed rapid warming gives urgency to discussions about how to slow greenhouse gas emissions.

'Goals' and 'caps' on carbon emissions are practically worthless, if coal emissions continue, because of the exceedingly long lifetime of carbon dioxide in the air.

The greatest danger hanging over our children and grandchildren is initiation of changes that will be irreversible on any time scale that humans can imagine.

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

Coal is the single greatest threat to civilization and all life on our planet.