I'm really glad to see this. I don't know for sure that iron fertilization will turn out to be a good idea, but the opposition to experimenting with it baffles me. It's like people think that we can choose whether or not to engage in geoengineering. No, we can't: we're already doing it (as indeed the article points out). If we can find new interventions that counteract the effects of our existing interventions, that would be a wonderful thing.
I think we should be experimenting with both iron fertilization (to sequester carbon and combat ocean acidification) and sulfur aerosols (for cooling). Both of these mimic natural events such as volcanic eruptions; they're not unprecedented in nature.
I heartily welcome the opportunity to troll the chemtrail people when we do begin geoengineering experiments at scale, in earnest. I know there's going to be a conspiracy-theory movement around anything we do to save our planet.
I think we should be experimenting with both iron fertilization (to sequester carbon and combat ocean acidification) and sulfur aerosols (for cooling). Both of these mimic natural events such as volcanic eruptions; they're not unprecedented in nature.