Use this student portal to understand all you can about acid rain and its harmful effects. Modules for interactive games, stories, puzzles, vocabulary terms and links to other activities and experiments.

Each year EPA tracks the levels of pollutants in the air and how much of each pollutant (or the pollutants that form them) is emitted from various pollution sources. The Agency looks at these numbers year after year to see how the pollutants have changed over time. EPA posts the results of the analyses to this web site.

Official site with information and resources relating to all aspects of environmental conservation: data, maps and laws. Specific environmental information by zip code provides immediate relevance to your world.

Provides an overview of the issue of sediment contamination in the Great Lakes, how the problem is assessed, causes of contamination, and remedial efforts. Includes links to more in-depth information.

Find out about the six major air pollutants. In-depth descriptions of ozone, nitrogen dioxide, particulates, sulfur dioxide, carbon monoxide, and lead are provided.

Retrieve information from multiple sources of Envirofacts' System Data for your area of interest. using zip code, city, or county information.

Using zip codes, this site allows students to locate businesses in their communities that are producing wastes.

This EPA website has links to many science topics about which the Environmental Protection Agency has concerns.

Earth's atmosphere contains greenhouse gases. Find out what these gases are and where they come from. Also link to other information about how greenhouse gases contribute to climate change.

Explains what hypoxia is, its causes, the sources, why it is important to reduce it, and where it occurs around the world. Includes a diagram showing how hypoxia develops in a water body and links to lots of additional resources.

This official site for the EPA describes the issues of the day. Learn about topics such as water, air, climate, wastes and pollution, green living, and more. Find important ways that you can get involved in protecting the environment.

This site is loaded with information on solid waste and hazardous waste. It includes industries' effects on the environment, waste programs, treatment, control, pollution prevention, recycling, and cleanup programs.

The EPA provides many ideas for integrating green infrastructures into communities. This site also discusses how this can build climate resilience and offers resources for doing a cost-benefit analysis, for addressing government regulations, and for developing green infrastructure policies.

Students and teachers can explore environmental issues with classroom resources, homework help, and other publications.

Air pollution occurs both inside and outside and is dangerous to individuals as well as to the planet. The Environmental Protection Agency oversees laws and regulations related to air quality and has gathered a wealth of information to help individuals understand the issue and address air pollution problems.

This site provides real-world issues as well as the scientific research and technology used to support the EPA's mission to protect human health and safeguard the natural environment.

Find an array of environmental and science-based lesson plans, activities and ideas from the EPA, other federal agencies, and external organizations.

Learn about the task force formed to help the public understand the causes and effects of eutrophication in the Gulf of Mexico.

EPA site offers answers to what nonpoint source pollution is as well as provides links and information as to what concerned citizens can do about it.

Provides information on what to do after a flood to protect well water from contamination, the testing of private well water, and protecting private well water.