February 17, 2020, Video: "As climate change accelerates, some scientists are researching ways to alter our climate to slow down warming. But the method, called solar geoengineering, comes with some serious risks. Given the grim reality of the climate crisis, some scientists are seeking to artificially manipulate the environment to limit the impacts of global temperature rise. One idea is to release aerosols into the stratosphere to reflect sunlight back into space. While the method could buy the world some time to lower carbon emissions, it presents serious scientific and political risks."