ATM S 111 Lecture 17: Geoengineering

• School: UW
• Department: Atmospheric Sciences
• Course: ATM S 111
• Professor: Casey Cathlee Hilgenbrink

Document Summary

From 6000 doubling co2 simulations, randomly changing climate model parameters: very high temperature changes are unlikely, but hard to rule out (small temp changes are essentially impossible, two main strategies of geoengineering. First: solar radiation management: goal of solar radiation management: reduce shortwave radiation that gets to the surface. If the radiative forcing decrease from this equals the radiative forcing increases from co2, the global temperature change should be close to zero. In the energy balance equation: energy out is decreased by more greenhouse effect, goal of geoengineering: decrease energy in from the sun to make energy balance happen (and stop warming, can dimming the skier perfectly cancel co2, no. Stratospheric sulfur injections: designed to imitate volcano eruptions. Shoot a very fine spray of sea water into the air: make cloud droplets smaller and this more reflective of sunlight: works best in pristine ocean areas.