How much sunlight would I need to block to stop / reverse climate change?
Using this handy dandy graph, I estimate that by the time climate change forces a response we will need to reverse 2° Celsius of heating.
The method for temperature control is described in here - a sunlight blocking satellite.
What percent of the sunlight destined for Earth needs to be reflected/redirected?
The question above presupposes 1%. But where I live there is a 14° variance in temperature which happens over 8 hours (1.75° per hour). The satellite would block light 24 hours per day so by my calculations we could cool the Earth 2°C in 5 days.
1% cooling x 1.75° x 24 hours x 5 days = 2.1°
I assume my math is wrong. But assuming we want to cool the earth over 20 years, what percent of sunlight actually needs to be reflected?
This post was sourced from https://worldbuilding.stackexchange.com/q/102557. It is licensed under CC BY-SA 3.0.
0 comment threads