The average temperature in the United States has increased by approximately 1.8 degrees Fahrenheit or 1 degree Celsius since the year 1900. The last decade from 2014 to 2024 has been recorded as the hottest decade in American history with temperatures breaking records repeatedly. Scientists predict that US temperatures could rise by an additional 3 to 7 degrees Fahrenheit by the year 2100 depending on emission levels. The southwestern states including Arizona Nevada and California are experiencing the most dramatic temperature increases with deadly heat waves becoming more common. Alaska has warmed twice as fast as the rest of the country with temperatures increasing by over 3 degrees Fahrenheit causing rapid glacier melting. Rising temperatures are causing longer and more severe drought conditions particularly in western states threatening water supplies and agricultural production significantly. Heat related deaths in America have increased dramatically with over 1700 deaths per year now attributed to extreme heat events across the country. Warmer temperatures are extending wildfire seasons making fires more frequent intense and destructive especially in California Oregon and Colorado annually. Ocean temperatures along US coasts are rising causing coral reef destruction more powerful hurricanes and disruption of marine ecosystems along both coastlines. Reducing greenhouse gas emissions transitioning to renewable energy and implementing climate adaptation strategies are essential to slow temperature increases across America.