PLEA Network

9 May 2018, Carbon Brief, Explainer: Six ideas to limit global warming with solar geoengineering. Scientists agree that cutting global greenhouse emissions as soon as possible will be key to tackling global warming. But, with global emissions still on the rise, some researchers are now calling for more research into measures that could be taken alongside emissions cuts, including – controversially – the use of “solar geoengineering” technologies. Solar geoengineering is a term used to describe a group of hypothetical technologies that could, in theory, counteract temperature rise by reflecting more sunlight away from the Earth’s surface. From sending a giant mirror into space to spraying aerosols in the stratosphere, the range of proposed techniques all come with unique technical, ethical and political challenges. Carbon Brief spoke to the scientists who are pioneering research into these techniques to find out more about their potential uses, shortfalls and overall feasibility. Read more here