ReportMarch 19, 2025

People Exposed to Climate Change: December 2024-February 2025

Read the full report: People Exposed to Climate Change: December 2024-February 2025
Download the data: Climate Shift Index (CSI) levels for 220 countries, territories and dependencies, and 940 cities around the world

Key Facts

During the past three months (December, January, and February), the effects of human-induced climate change — mainly from burning coal, oil, and methane gas — were evident in most regions of the world, particularly in the form of extreme heat. This analysis uses Climate Central’s Climate Shift Index (CSI) to determine the influence of climate change on temperatures around the globe during this period.

This report finds that human-caused climate change increased heat-related health risks for billions and made extreme heat events more likely around the globe. Key findings include:

Data

Report Graphic: Days at CSI 2 or higher (Dec 2024-Feb 2025)

Major funding provided by the Bezos Earth Fund