The EPA's responsibilities include writing regulations, national standards, enforcement, providing grants, study issues relating to the environment etc.
NOAA National Centers for Environmental Information (NCEI) is responsible for preserving, monitoring, assessing, and providing public access to the Nation's treasure of geophysical data and information. Formally the National Geophysical Data Center.
The NWS mission is to provide weather, water and climate data, forecasts, warnings, and impact-based decision support services for the protection of life and property and enhancement of the national economy.
The National Association of Environmental Professionals (NAEP) is a multi-disciplinary association for professionals dedicated to the advancement of the environmental professions.