

Agreed, net/net energy usage reduction is more efficient. However, carbon capture and/or geoengineering are now unfortunately necessary in tandem with reducing emissions for humanity (and the other species unfortunate enough to be sharing this planet with our mistakes) to avoid the worst outcomes of climate change. We simply didn’t do enough soon enough, and several warming effects are already in motion.
And unfortunately, both climate deniers and activists alike have been fighting against additional funding and research in these technologies, so we’re pretty far behind in our understanding.
During the ice age the size of the Laurentide ice sheet was over 4km (2.5 miles) thick and 13m km2 (5m miles2)
This is completely irrelevant to the discussion at hand, except it’s another mind-blowingly huge piece of ice.