It looks like you're using Internet Explorer 11 or older. This website works best with modern browsers such as the latest versions of Chrome, Firefox, Safari, and Edge. If you continue with this browser, you may see unexpected results.
The World Meteorological Organization (WMO) is a specialized agency of the United Nations. It is the UN system's authoritative voice on the state and behaviour of the Earth's atmosphere, its interaction with the oceans, the climate it produces and the resulting distribution of water resources.
The U.S. Global Change Research Program (USGCRP) is a Federal program that coordinates and integrates global change research across 13 government agencies to ensure that it most effectively and efficiently serves the Nation and the world. USGCRP was mandated by Congress in the Global Change Research Act of 1990, and has since made the world’s largest scientific investment in the areas of climate science and global change research.v
(MOST NOAA.GOV PAGES ARE CURRENTLY UNAVAILABLE DUE TO THE GOVERNMENT SHUTDOWN) The National Weather Service is a component of the National Oceanic and Atmospheric Administration (NOAA). NOAA is an Operating Unit of the U.S. Department of Commerce.
(MOST NOAA.GOV PAGES ARE CURRENTLY UNAVAILABLE DUE TO THE GOVERNMENT SHUTDOWN) The National Climatic Data Center's Paleoclimatology Branch is the world's largest archive of climate and paleoclimate data. The Paleoclimatology Branch operates the World Data Center for Paleoclimatology, an Applied Research Center for Paleoclimatology, and partners with national and international science initiatives around the world to expand the use of paleoclimatic data.
NASA conducts a program of breakthrough research on climate science, enhancing the ability of the international scientific community to advance global integrated Earth system science using space-based observations.
Monitoring and assessment of the state of the Earth's climate in near real-time, providing decision-makers at all levels of the public and private sectors with data and information on climate trends and variability.