An AMOC collapse “is a really big danger that we should do everything we can to avoid,”
Hmm, that seems quite alarmist to me. It’s probably a hoax, but even if it isn’t, the effects are likely being over blown. An AMOC collapse would only cause a slight drop in GDP, a couple percentage points only, and it’s probably already priced in on stock markets. I also believe in the power of entrepreneurship to find solutions. I’ve got it! We dump a whole heck of a lot of salt into the ocean. Boom! I’ll head the start-up. We’ll just get our capital from investors like Black Rock and Bill Gates. Oh, and governments, of course. We’ll get governments to pay us to drive massive, diesel powered cargo ships, loaded with salt, out to the middle of the Atlantic Ocean. See, market solutions. Oh man, ecological collapse is going to generate so much profit and shareholder value. Take that, doomers. /s
In theory, geoengineering should slow down the rate of warming while we transition away from fossil fuels. Since the transition to a zero GHG emission global civilization will inherently take more time than we have, to prevent warming beyond 2.0C, we could use geoengineering to buy us some time. In theory, it makes perfect sense, but I am leery. I’m concerned about potential unintended consequences and side effects, but I’m even more concerned that geoengineering will make people complacent, slowing down the transition. Even theoretically, geoengineering only works if we are rapidly transitioning at the same time, otherwise it’s just like throwing more and more dynamite onto a pile, and all it would take is for us to stop geoengineering, for whatever reason, for the dynamite to explode.