Basics | Climate Change. How is the climate changing in the U.S.? Observations across the United States and world provide multiple, independent lines of evidence that climate change is happening now. Learn More What are climate change and global warming? Global warming refers to the recent and ongoing rise in global average temperature near Earth's surface. It is caused mostly by increasing concentrations of greenhouse gases in the atmosphere. Global warming is causing climate patterns to change. Climate change refers to any significant change in the measures of climate lasting for an extended period of time. Climate change is happening Our Earth is warming. The evidence is clear. Learn more about the signs of climate change in the United States. Top of Page Humans are largely responsible for recent climate change Over the past century, human activities have released large amounts of carbon dioxide and other greenhouse gases into the atmosphere.
Learn more about the causes of climate change. We can make a difference. NOAA - National Oceanic and Atmospheric Administration. Forces of Nature. Education | Welcome - Southeast Regional Climate Center. Welcome to Climate Kids - where kids of all ages can have FUN learning about our climate! Click the image below for Games, Activities, and Resources or scroll down for our text menu. Interactive Weather for Kids - The Weather Channel Kids. Climate Kids. Welcome to Web Weather for Kids.