Why We Must Focus on Clean, Renewable Energy and Storage, Not “All of the Above,” For Solving Global Climate, Air Pollution, and Energy Security Problems — A slide deck from Mark Z Jacobson presented at the American Geophysical Union meeting on December 11, 2023
https://web.stanford.edu/group/efmh/jacobson/WWSNoMN/2312-AGU-MZJ.pdf
Conclusion
Carbon capture, direct air capture, blue hydrogen, non-hydrogen electro-fuels, and bioenergy even when powered by wind-water-solar (WWS), all increase CO2, air pollution, and social cost and either fossil mining and infrastructure or land use versus using the same WWS to replace a CO2 source CCS [Carbon Capture and Storage], DAC [Direct Air Capture] always increase CO2 and new nuclear increases cost, time-to-operation, emissions, and catastrophic risk versus new wind/solar.
However, a Wind, Water, Solar (WWS) Solution is practical and we can "electrify or provide direct heat for all sectors and provide [that] electricity and heat with 100% WWS." The book “No Miracles Needed” explains how to transition to 100% WWS. https://web.stanford.edu/group/efmh/jacobson/WWSNoMN/NoMiracles.html
Add accelerated natural carbon drawdown through regenerative agriculture, mariculture, and forestry (Geotherapy Not Geoengineering, Please http://solarray.blogspot.com/2021/04/geotherapy-not-geoengineering-please.html) and we have a one-two punch that could return atmospheric CO2 and CO2e to preindustrial levels by the end of this century.
At least as a thought experiment.