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.

Other global drought impact news:

• CBS Colorado: Colorado’s fall colors could be duller this year. Here’s why.
• Technology Networks: Mixing tree species does not always make forests drought-resilient
• The Guardian (U.K.): ‘We must change’: how drought and overextraction of water has run Iran dry