Williams, a Columbia University associate research professor in the Lamont-Doherty Earth Observatory, compared ancient megadroughts across the region starting in 800 A.D. through the late 1500s with soil moisture records from 2000 to 2018.
Williams, a Columbia University associate research professor in the Lamont-Doherty Earth Observatory, compared ancient megadroughts across the region starting in 800 A.D. through the late 1500s with soil moisture records from 2000 to 2018.