This animated video explains "how watersheds work in the United States and how they impact us on many levels."

Dr. Jamie Dewitt explains her research in Phamacology and Toxicology and why water pollution might pose a problem no matter where you are... Her current scientific research focus is on how exposure to emerging contaminants in the aquatic environment, such as per- and poly-fluoroalkyl substances (PFASs) and pharmaceutical and personal care products, affect the adult and developing immune and nervous systems.

This module has three main purposes. It should help you to: (1) Understand when and how modeling can contribute to watershed assessment. (2) Learn approaches and tools that are useful for watershed modeling. Note that the requirements of watershed assessment can necessitate different tools and approaches from a traditional point source modeling problem. (3) Understand the considerations in choosing models for watershed assessments.

This widespread problem of water pollution is jeopardizing our health. Unsafe water kills more people each year than war and all other forms of violence combined. Meanwhile, our drinkable water sources are finite: Less than 1 percent of the earth's freshwater is actually accessible to us. Without action, the challenges will only increase by 2050, when global demand for freshwater is expected to be one-third greater than it is now. Still, we're not hopeless against the threat to clean water.

Students will have fun analyzing sample water for eight different test factors: pH, dissolved oxygen, biochemical oxygen demand, temperature, turbidity, nitrate, phosphate, and coliform bacteria. This complete kit includes a manual with step-by-step, diagrammed instructions; an easy-to-use laminated color chart, and all the necessary apparatus and non-hazardous TesTabs to test ten water samples (three samples for coliform).

Nonpoint source (NPS) pollution is caused when rainfall or snowmelt, moving over and through the ground, picks up and carries natural and human-made pollutants, depositing them into lakes, rivers, wetlands, coastal waters and ground waters. Learn the basics of NPS pollution.

Almost anyone or anything is a potential source of pollutants. So water quality experts group sources into two main categories of pollutants point sources and non-point sources. Homes, industries, wildlife, recreation, and transportation all depend on clean sources of water. Everyone uses it, needs it, and many of us take it for granted. These videos examine the ways water is used, profiles types of pollution, and presents a variety of perspectives on the issue of water quality. What are the biggest threats to water quality in your area?

The most common argument for the use of nuclear power over power from conventional fossil fuels is the diminished environmental impact that nuclear power promises. While nuclear fission reactions do not directly produce greenhouse gases like fossil fuel combustion, power plants affect the environment in a myriad of ways. In order to elucidate a clearer environmental impact comparison between all power generation methods, including renewables, less obvious environmental effects must be adequately assessed.

The Watershed Game is an interactive, educational tool that helps individuals understand the connection between land use and water quality. Participants learn how a variety of land uses impact water and natural resources, increase their knowledge of best management practices (BMPs), and learn how their choices can prevent adverse impacts. Participants apply the tools of plans, practices, and policies that help them achieve clean water goals for protection and restoration while providing for community growth.

Salt marshes are among the most ecologically productive and diverse ecosystems in the United States. They provide important services such as floodwater storage and storm protection for coastal cities such as New Orleans. Healthy marshes also serve essential roles in carbon sequestration, a service of primary concern at current emission rates of the greenhouse gas carbon dioxide, nutrient removal and water purification.