Les 10 concurrents epa.gov les plus visités

nrdc.org

We work with local partners to restore access to power and clean water after Hurricane Maria and ensure a more sustainable future.

unep.org

The global authority for the environment with programmes focusing on climate, nature, pollution, sustainable development and more.

edf.org

We're a global environmental organization driving game-changing solutions to our biggest environmental issues like climate change, air pollution and more.

usgs.gov

The Energy Act of 2020 defined critical minerals as those that are essential to the economic or national security of the United States; have a supply chain that is vulnerable to disruption; and serve an essential function in the manufacturing of a product, the absence of which would have significant consequences for the economic or national security of the U.S. The act further specified that critical minerals do not include fuel minerals; water, ice, or snow; or common varieties of sand, gravel, stone, pumice, cinders, and clay. Mineral criticality is not static, but changes over time as supply and demand dynamics evolve, import reliance changes, and new technologies are developed. The 2025 list of critical minerals/elements includes:AluminumCobaltHafniumMetallurgical CoalRhodiumThuliumAntimonyCopperHolmiumNeodymiumRubidiumTinArsenicDysprosiumIndiumNickelRutheniumTitaniumBariteErbiumIridiumNiobiumSamariumTungstenBerylliumEuropiumLanthanumPalladiumScandiumUraniumBismuthFluorsparLeadPhosphateSiliconVanadiumBoronGadoliniumLithiumPlatinumSilverYtterbiumCeriumGalliumLutetiumPotashTantalumYttriumCesiumGermaniumMagnesiumPraseodymiumTelluriumZincChromiumGraphiteManganeseRheniumTerbiumZirconiumLearn More: National Minerals Information CenterCritical MineralsUSGS Mineral Resources Program

niehs.nih.gov

NIEHS offers many useful visual guides to help scientists with their research.

c2es.org

To meet the climate challenge, the United States needs a comprehensive national approach. Well-designed federal policy can cut emissions and strengthen resilience while driving economic growth.

ww2.arb.ca.gov

carb's mission is to promote and protect public health, welfare and ecological resources through the effective and efficient reduction of air pollutants while recognizing and considering the effects on the economy of the state.

airnow.gov

airnow is your one-stop source for air quality data. our recently redesigned site highlights air quality in your local area first, while still providing air quality information at state, national, and world views.