While denial leads to certainty, it is only the certainty of death. This is true for individuals and also for civilizations.

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

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

We have to remove the CO2 that the industrial economy has already emitted, which otherwise will remain in the atmosphere for hundreds of years and alter the Earth's climate irreversibly. It is possible to do this.

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

While denial leads to certainty, it is only the certainty of death. This is true for individuals and also for civilizations.

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.