Climate change is due to the use of energy for industrial growth, which has been and is overwhelmingly based on fossil fuels.

Signs of a poorly understood but treatable house fire requires action, not inaction.

The change in economic values created by the new markets for global public goods will reorient our global economy and under the right conditions can usher the satisfaction of basic needs of the present and of the future. This is what is needed right now.

Technology is a many-headed monster and perhaps it would be better to regress to a safer past and avoid technological change; it is tempting to think like that.

The sun is the source of all energy on planet Earth and we cannot experiment with our only energy source.

If nuclear warfare is believed to be somewhat controlled, then climate change is now the greatest threat.

Trees and clean energy [are] the long-run solution but we have no time to wait for the long run. We need a short-run solution now, and one that encourages and facilitates the transition to the long-run solution.