Climate came up only briefly in the first two Democratic debates. In the first, Rachel Maddow asked whether the candidates had a plan to save Miami. In the second, the moderators asked less than half of the candidates to briefly explain their position on the issue and the first of those (Kamala Harris), after her standard climate soundbite, pivoted to North Korea and Russiagate. Biden and Sanders saw it as a green energy issue — we just need more electric cars.
A more serious and determined debate has been going on outside, as a new wave of scientist-engineers surge through international conferences and refereed journals testing theories about how to recover some hope to sustain life aboard our damaged spacecraft before it passes a yet-unlocated threshold beyond which there is no recoverability.
The new tech they are pimping might be categorized generally as geoengineering, but that tends to toss both wizards and prophets into the same bag, so perhaps the tech side should be split between natural solutions and artificial ones. For carbon dioxide removal, the natural ones are afforestation/reforestation, soil rejuvenation, biochar, holistic management, chinampas, and marine permaculture. The artificial ones are…