U.S. Cities Experience Surge in 90-Degree Days, Impacting Infrastructure and Health
A recent study highlights a significant increase in the number of days exceeding 90°F in over 30 U.S. cities, including Miami and Houston, compared to 1970. This rise in extreme heat days is attributed to climate change and poses challenges for infrastructure, health, and agriculture. Cities like Tucson are implementing measures such as cooling centers and building code changes to mitigate the effects. The study, published in JAMA, reports a 117% increase in heat-related deaths in the U.S. since the late 20th century. Infrastructure, designed for cooler climates, is under strain, with heat causing issues like rail track expansion and bridge malfunctions. 
