"Scientific analysis warns that climate change is shrinking the 'safe window' for the Hajj pilgrimage. Average May temperatures in Mecca have risen by approximately 3.5°C compared to pre-industrial levels. Over 1,300 pilgrims died during the 2024 Hajj, which coincided with extreme heatwaves. Projections suggest that if global temperatures rise by 3°C, 97% of future Hajj pilgrimages will face dangerous heat."