Yale Environment 360: In 1991, Mount Pinatubo in the Philippines erupted in one of the largest volcanic blasts of the 20th century. It spat up to 20 million tons of sulfur into the upper atmosphere, shielding the earth from the suns rays and causing global temperatures to drop by nearly half a degree Celsius in a single year. Thats more than half of the amount the planet has warmed Studies have shown that such a strategy would be powerful, feasible, fast-acting, and cheap. due to climate change in 130 years.
Now...