Cities’ Response to Escalating Heat
Cities around the world face more frequent, longer and hotter heat waves as climate change continues to raise average temperatures and amplify extremes. Urban areas are especially vulnerable because the urban heat island effect concentrates heat: paved surfaces, dense buildings and low vegetation can raise local temperatures by 1–7°C relative to nearby rural areas. Preparing for this new normal requires a mix of near-term emergency measures, longer-term planning, infrastructure upgrades, public health interventions and community-focused equity work.The challenge: understanding why severe heat waves are becoming a rising threat to urban areasHeat waves heighten the likelihood of heat‑related illness, cardiovascular and…