After denial comes anger and finally, acceptance.

The new markets that arise from ecological constraints will dominate the 21st century economy, and so will markets for knowledge.

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

Geoengineering means changing the Earth's fundamental large-scale processes.

We know little of the consequences of the geoengineering process, such as spraying particles into the atmosphere that shade the planet from the sun's rays and could decrease its temperature. But this process is how dinosaurs disappeared from the Earth about 60 million years ago, by particles spewed by a volcano or a giant meteorite impact, and our species could follow suit.

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

Carbon negative power plants can provide energy while they overcome poverty and change economic values in the right direction.