“ A 2014 report published in the journal Earth’s Future found that it would only take the detonation of 100 nuclear warheads to throw 5 teragrams of black soot into the earth’s stratosphere for decades, blocking out the sun and making the photosynthesis of plants impossible, starving every terrestrial organism to death that didn’t die of radiation or climate chaos first.”
They would have to be ground bursts, probably bunker-busters to do this: Air bursts kill by heat, fire and radiation, but they don’t thrown particulates into the stratosphere. Or does this theory rely on simple soot from burning cities and forests?
If so, it’s interesting that the Nuclear Winter scenario is the exact opposite of the Global Warming apocalypse: both involve Climate Change by human acts. Two thoughts occur to me: if 5 teragrams of black soot cause Global Freezing, maybe global warming can be reversed by, say, 1 Teragram of black soot? Maybe the untreated exhaust from 1000 Coal-fired power stations in China are the reason Global Warming stopped dead in 1998?