Conditions

A heatwave is a period where local excess heat accumulates over a sequence of unusually hot days and nights. Heatwaves and prolonged excess heat conditions are increasing in frequency, duration, intensity and magnitude due to climate change. Even low and moderate intensity heat waves can impact the health and well-being of vulnerable populations

July 13, 2026 — Following the sudden death of U.S. Senator Lindsey Graham of South Carolina, widespread news reports indicate he suffered from an aortic dissection. An aortic dissection is a tear in the inner layer of the aorta, the body’s largest artery. Blood surges through the tear, causing the layers of the aortic wall…