"Space Parasol: A Climate Crisis Solution?"

Scientists are proposing the idea of a giant sunshade in outer space to counter global warming by blocking a small but crucial amount of solar radiation. Various proposals include scattering dust deep into space, creating a shield made of "space bubbles," and tethering a solar shield to a repurposed asteroid. Proponents argue that while reducing greenhouse gas emissions and removing carbon dioxide from the atmosphere are important, a sunshade could help stabilize the climate while other climate mitigation strategies are pursued. Critics, however, argue that a sunshade would be astronomically expensive and could not be implemented in time, given the speed of global warming.