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

After denial comes anger and finally, acceptance.

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

Changing the world's oceans to increase their uptake of CO2, as other geoengineering solutions propose, is equally dangerous, as the increased resulting acidity of the oceans kills tiny crustaceans, such as krill, that are the basis of the pyramid of life on the planet as we know it.

The consensus is that climate change ranks along with nuclear warfare as the top two risks facing human civilization.

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.

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