1. SRM will reduce efficiency of equatorial solar but minimally effect solar in northern climes. Like, less than 5% reduction. Pretty good trade off for stabili

1. SRM will reduce efficiency of equatorial solar but minimally effect solar in northern climes. Like, less than 5% reduction. Pretty good trade off for stabilizing temperatures. SRM from lofting sulfur or calcium only lasts about a year. It has to be done yearly. So, no long term effects, for better or worse. 2: We will fry the planet long before running out of fossil fuels. There is a lot left. 3: we absolutely can and must try geoengineering at small scales before scaling up. It isn’t a binary phenomenon. Every time there is a volcanic event, we get a natural experiment.