According to a new study, the planet is drying at an unprecedented pace, presenting a critical threat to humanity. Researchers found that "continental drying is having profound global impacts" that "threaten water availability" across the globe. To learn more, Ali Rogin speaks with ProPublica climate investigations editor Abrahm Lustgarten for our series, Tipping Point. PBS News is supported by - https://www.pbs.org/newshour/about/funders. Hosted on Acast. See acast.com/privacy