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

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

We have used the majority of our carbon budget and we are already at dangerous levels of CO2 concentrations, about 400 parts per million. The levels were 250 before industrialization. So the problem is what we have done already and, therefore, what must be undone.

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

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

The first reaction to trauma is denial, then comes anger and finally, acceptance. I think the US is still between denial and anger, and I hope we will reach acceptance because almost perversely, right now, only the US has the technology that is needed for global economic change.

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.