Question

In mid-1991, Mount Pinatubo began a long series of eruptions, sending more than 18 million metric tons of sulfur dioxide into the atmosphere—enough to block a significant amount of solar energy. When did the full effects of this loss of solar energy occur? (When did the average global temperature fall to its lowest point?)

Answer 1

is there any other information you were given? this seems rather complicated (and speculative) without data.