Human emissions drove the megadrought in the western US | AI News Digest
A new study from CU Boulder reveals that human emissions are a significant driver of the ongoing megadrought in the western United States. The research indicates that greenhouse gases and aerosols have altered the Pacific decadal oscillation (PDO), which has been in a negative phase since the 1990s, leading to reduced precipitation and severe drought conditions. With 93% of the western U.S. experiencing drought, the findings suggest that existing climate models have underestimated the impact of human activity on climate patterns. The study emphasizes the need for improved water management strategies as the drought is expected to persist for decades. Water planners are encouraged to invest in infrastructure to adapt to these long-term changes.
