Learn the Issues
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Divide AUM Site Screening Report
Site Screening Report of Divide abandoned uranium mine which includes all immediate information associated with the mine site.
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East Mesa Mines AUM Site Screening Report
Site Screening Report of East Mesa Mines abandoned uranium mine which includes all immediate information associated with the mine site.
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Elwood Thompson No. 1 AUM Site Screening Report
Site Screening Report of Elwood Thompson No. 1 abandoned uranium mine which includes all immediate information associated with the mine site.
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Harvey Blackwater No. 3 AUM Site Screening Report
Site Screening Report of Harvey Blackwater No. 3 abandoned uranium mine which includes all immediate information associated with the mine site.
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Cov000 AUM Site Screening Report
Site Screening Report of Cov000 abandoned uranium mine which includes all immediate information associated with the mine site.
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Church Rock ISL AUM Site Screening Report
Site Screening Report of Church Rock ISL abandoned uranium mine which includes all immediate information associated with the mine site.
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EPA's Bristol Bay Assessment
EPA's scientific assessment of the potential impact of large-scale mining operations on the Bristol Bay watershed ecosystem.
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What’s New in the Uniform Grants Guidance 2024 Revision to 2 CFR 200
Provides an overview of changes to 2 CFR 200 based on the Office of Management and Budget's Uniform Grants Guidance 2024 Update.
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Frequent questions about EPA's Bristol Bay Assessment
Frequently asked questions about EPA's Bristol Bay Assessment. This information is no longer updated but may be useful as a reference or resource.
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Smog, Soot, and Other Air Pollution from Transportation
EPA has set standards for smog, soot and other air pollutants, as well as created programs that lead to investments in clean vehicle and engine technology.
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Final National Level Listed Species Biological Evaluation for Methomyl
EPA has drafted Biological Evaluations (BEs) for two additional pilot chemicals: carbaryl, and methomyl. The draft BEs are based on interim methods developed in conjunction with FWS, NMFS and USDA in response to the National Academy of Science report.
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Final National Level Listed Species Biological Evaluation for Carbaryl
EPA has drafted Biological Evaluations (BEs) for two additional pilot chemicals: carbaryl, and methomyl. The draft BEs are based on interim methods developed in conjunction with FWS, NMFS and USDA in response to the National Academy of Science report.
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Excess Nitrogen in the U.S. Environment: Trends, Risks, and Solutions
The module provides a link to an article that is part of a series of articles in Issues in Ecology. This article focuses on the major sources of nitrogen, impacts and potential mitigation options.
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Ecosystem Services: Benefits Supplied to Human Societies by Natural Ecosystems
The module provides a link to an article that is part of a series of articles in Issues in Ecology. This article discusses the many services an ecosystem provides in order to sustain and fulfill human needs.
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Effects of Aquaculture on World Fish Supplies
The module provides a link to an article that is part of a series of articles in Issues in Ecology. This article focuses on the effects aquaculture is having on world fish supplies.
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Applying Ecological Principles to Management of the U.S. National Forests
The module provides a link to an article that is part of a series of articles in Issues in Ecology. This article discusses the need to design forest management policies for the future.
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Register for Upcoming Webcasts
webcast registration
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EPA Opens Public Comment Period on Proposal to Register a New Mosquito Repellent Product
EPA is accepting public comments on its proposal to register the first outdoor product containing the insecticide transfluthrin.
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Tools for Source Water Protection Webcast
Learn more about tools for source water protection during our March 21st webcast.