Global Drought Trends Show No Recent Acceleration Under Climate Warming
Global Drought Trends Show No Recent Acceleration Under Climate Warming
global · Published Sep 11, 2026
• A comprehensive study published in Nature has analyzed global drought trends using the Standardized Precipitation Evapotranspiration Index (SPEI) over the period 1981–
• The research compared Penman-type and energy-based methods for calculating atmospheric evaporative demand (PET) and found that Penman-type methods artificially inflate drying trends, showing intensification six times stronger than energy-based methods. Despite these discrepancies, the study concluded that approximately 99% of quasi-global land areas (50°S–50°N) show no significant acceleration in drought trends under either PET type. The findings challenge assumptions about the impact of climate warming on drought severity, frequency, and duration, emphasizing the importance of methodological accuracy in drought assessments. Source time: Fri, 11 Sep 2026 00:00:00 GMT.

Impact & Risks

The study highlights that while drought intensification is evident in some regions, the overall global trend does not show acceleration. This has implications for water resource management and agricultural planning, as exaggerated drying trends could lead to misinformed policy decisions. The research underscores the need for accurate PET methods to avoid overestimating drought risks, particularly in areas with high agricultural dependency.

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