The summer of 2024 has been the hottest on record globally, with exceptional heat experienced across the Northern Hemisphere, including in Tucson, Phoenix, and Spain. Tucson's average daily temperature of 90 degrees from June through August resulted in its hottest summer since records began in 1895, with numerous days exceeding 100 degrees. Phoenix also set records with an average temperature of 98.4 degrees and 103 consecutive days of 100-plus temperatures. The European Union's Copernicus Climate Change Service confirmed that June to August 2024 saw global temperatures 0.69°C above historical averages, surpassing previous records. This extreme heat has led to significant climate-related disasters worldwide, including severe flooding in Sudan and intensified typhoons in Asia. The persistent heat underscores the urgent need for reducing greenhouse gas emissions to mitigate further climate change impacts.