Should scientists artificially cool the planet to stave off climate catastrophe?

What is geoengineering?
Some climate scientists are coming to believe it’s humanity’s only hope for slowing or stopping disastrous changes in the climate. As runaway carbon dioxide emissions contribute to melting ice caps, widespread flooding, prolonged heat waves and droughts, apocalyptic wildfires, and devastating hurricanes, researchers are exploring planetary-scale interventions in Earth’s natural systems as a way of counteracting climate change. Geoengineering has been debated since the 1960s, when U.S. scientists suggested floating billions of white, golf ball–like objects in the oceans to reflect sunlight.


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