Low precipitation, not rising temperatures, may have caused the 2021 drought
Last week, Utah State University hosted the 47th annual National Oceanic and Atmospheric Administration’s Climate Diagnostics & Prediction Workshop. PhD student Grace Affram in USU's Plant, Soils & Climate department said, "We thought it was the increase in temperature, because we all know global warming and greenhouse gases increase temperature. We later realized that temperature could only be a temporary, secondary driver."
Source: upr.org