Every year we emit billions of tons of CO2 into the atmosphere. The results of this experiment are in: it’s getting warmer. The question is, can we reverse engineer global warming? In this article we want to explore if we need to cloud the sun through geoengineering to cool down the earth. The story in bullet points:Solar geoengineering is the possibility to reflect a small fraction of sunlight back into space to lower temperatures on Earth.Scattering aerosols in the stratosphere seems to be ...