Nuclear weapons don't magically cool the planet, and "a little nuke" doesn't cool it "less than a big nuke". Nuclear winter is caused by smoke, dust and ash blo

Nuclear weapons don't magically cool the planet, and "a little nuke" doesn't cool it "less than a big nuke". Nuclear winter is caused by smoke, dust and ash blocking out sunlight. EB has a surprisingly short and to-the-point summary of it. https://www.britannica.com/science/nuclear-winter https://www.britannica.com/science/nuclear-winter