How Aerosols Brighten Clouds and Cool the Planet | Sarah J. Doherty | TED

Here's a conundrum: the same aerosol pollutants that harm human health also help cool the climate, says atmospheric scientist Sarah J. Doherty. Is there a way to clean up the air without warming the planet? Exploring the unintended consequences of reducing air pollution, she makes the case for a better understanding of marine cloud brightening — or intentionally adding sea salt aerosols to clouds over the ocean, which could reflect sunlight back into space and potentially reduce global warming. If you love watching TED Talks like this one, become a TED Member to support our mission of spreading ideas: Follow TED! X: Instagram: Facebook: LinkedIn: TikTok: @tedtoks The TED Talks channel features talks, performances and original series from the world's leading thinkers and doers. Subscribe to our channel for videos on Technology, Entertainment and Design — plus science, business, global issues, the arts and more. Visit to get our entire library of TED Talks, transcripts, translations, personalized talk recommendations and more. Watch more: TED's videos may be used for non-commercial purposes under a Creative Commons License, Attribution–Non Commercial–No Derivatives (or the CC BY – NC – ND 4.0 International) and in accordance with our TED Talks Usage Policy: For more information on using TED for commercial purposes (e.g. employee learning, in a film or online course), please submit a Media Request at #TED #TEDTalks #science