Altering the ocean or atmosphere to mitigate the effects of climate change is an approach called geoengineering. For scientists, these techniques were long considered taboo. But now, that’s changing. Researchers and startups are launching three geoengineering field experiments in Israel, Australia and Massachusetts this year. But will they work and could there be unintended consequences? WSJ reporter Eric Niiler tells host Alex Ossola about these projects, and what they could mean for the future of the planet. Learn more about your ad choices. Visit megaphone.fm/adchoices