Referring to stopping global warmin

Referring to stopping global warming, I agree with David Keith, who suspect geoengineering could be a cheap and easy way to head off some of the worst effects of climate change. Geoengineering is feasible because sulphate particles can effectively cool the earth. The project effectively alleviates the greenhouse effect by spraying sulfuric acid to increase the reflectivity of the atmosphere. And now there is no data to show that the earth's greenhouse gases are greatly reduced, and the climate warming lasts for at least decades, so it is urgent to take action to verify whether s geoengineering will work. But geoengineering is not perfect. First, injecting more sulfates into the atmosphere can lead to an extremely lethal loss of ozone. Second, we don't know how the work will offset the effects of greenhouse gases other than warming. Third, the project needs to be carried out indefinitely to ensure that climate change does not rebound. Therefore, the uncertainty of this project is very large. In my opinion, as long as it is feasible and beneficial to prevent climate warming, we might as well try. And I hope that each of us can act consciously to protect our earth.