Question

How many years will the nuclear winter take to settle?

Answer 1

2 - 3 YEARS WILL BE TAKEN

Answer 2

After one year, the average surface temperature of the Earth falls by 1.1 kelvin, or about two degrees Fahrenheit.

After five years, the Earth is, on average, three degrees colder than it used to be. Twenty years on, our home planet warms again to about one degree cooler than the average before the nuclear war