Following your interest on my latest Instagram post on Earth Day 2019, here’s the solar geoengineering post you've all been waiting for! This post will be providing most of the known types of solar geoengineering and also critically looking at where this research places us in the battle against climate change. I’m going to keep this as brief as possible so you don't get bored but also full of detailed explanations. N.B. When I mention “cooling the planet”, below, I mean by only one or two degrees Celcius maximum.