How does an increase in volcanic ash in Earths atmosphere affect temperature?
A large increase in volcanic ash in the atmosphere would likely cause a decrease in the temperature on Earth because all of those tiny particles would reflect sunlight back out into space (instead of it reaching the ground and warming the Earth.) This is the theory behind “nuclear winter.” In other words, everyone who wasn’t killed by an atom bomb would eventually starve/freeze to death because all of the dust that was generated in the explosions would stop sunlight from reaching crops and people.
