In a plot twist straight out of a bad sci-fi flick, egghead scientists are floating the idea of spraying sunblock into the sky to combat global warming—like giving Earth a giant SPF 5000 treatment by mimicking volcanoes with aerosol parties. But Columbia’s brain trust, led by Faye McNeill, is raining on the parade, warning models assume “perfect particles” in perfect spots, ignoring real-world chaos like acid rain, monsoon meltdowns, or clumpy diamond dust fizzling out. Alternatives? Scarce materials and jet stream roulette. Bottom line: dimming the sun sounds cooler than it is—stick to cutting emissions before we accidentally turn paradise into a polluted shade.
Scientists Warn Against Trying to Dim the Sun to Cool the Planet