Drought: Escalating Risks to Communities, Ecosystems, and Economies

On 17th June 2025, the Organisation for Economic Co-operation and Development (OECD) released its Global Drought Outlook, highlighting the increasing frequency, and geographical spread of droughts globally.

Drivers of Drought Hazard

Climatic Drivers of Drought

  • Climate Change Impact: Increases drought risk through altered precipitation patterns and rising temperatures.
  • Declining Precipitation: Regions like the Mediterranean, Western U.S., Africa, and parts of Australia have seen up to a 20% reduction in rainfall since 2000.

Rising Atmospheric Temperatures

  • Increased Evaporation: Higher global temperatures (1.8°C above pre-industrial levels by 2023) lead to more evaporation, intensifying drought risk.
  • Heatwaves: Contribute to flash droughts, with 50% more ....
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