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

We are in the midst of the 6th largest extinction event in the history of the plant and the first caused by human action.

CO2 from air can replace petroleum: it can produce plastics and acetate, it can produce carbon fibers that replace metals and clean hydrocarbons, such as synthetic gasoline. We can use CO2 to desalinate water, enhance the production of vegetables and fruit in greenhouses, carbonate our beverages and produce biofertilizers that enhance the productivity of the soil without poisoning it. Carbon negative technology is absolutely needed now.

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

After denial comes anger and finally, acceptance.

Climate change is new and complex. We don't have all the answers.

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