Developed over three years by approximately one hundred experts in climate-change science and public health – including representatives from the Environmental Protection Agency (EPA), the Department of Health and Human Services (HHS), the National Oceanic and Atmospheric Administration (NOAA), the National Aeronautics and Space Administration (NASA), the Department of Agriculture (USDA), and U.S. Geological Survey (USGS), the Department of Defense (DOD), and the Department of Veteran’s Affairs (VA) – the Climate and Health Assessment reinforces that climate change is a significant threat to the health of the American people not just in the future but right now. As the climate continues to change, the risks to human health will grow, exacerbating existing health threats and creating new public health challenges, and impacting more people in more places.