Climate change intensified risky heat for 1.5 billion, India saw 117 million affected

Human-induced climate change made at least a month of risky heat significantly more likely for over 1.5 billion people between June and August 2026, according to Climate Central analysis. India accounted for 117 million people exposed to at least 30 such days.

Europe was the most unusually hot region, with nearly nine in 10 people experiencing a month of risky heat. France and the Holy See recorded temperatures averaging 3.5 degrees Celsius above historical norms. Prolonged heat contributed to wildfires, drought, and pressure on health services.

“Risky heat days” were defined as hotter than 90 percent of historical local temperatures between 1991 and 2020. Across 203 countries, the average person experienced at least 30 days with a strong climate change influence. Asia had the largest number of people exposed, with 2.8 billion experiencing at least 30 days of risky heat.