Model My Watershed is a watershed-modeling web app that enables citizens, conservation practitioners, municipal decision-makers, educators, and students to analyze real land use and soil data in their neighborhoods and watersheds, model stormwater runoff and water-quality impacts using professional-grade models, and compare how different conservation or development scenarios could modify runoff and water quality.

The Leaf Pack Network is an international network of teachers, students, and citizen monitors investigating their local stream ecosystems. Following instructions in the Leaf Pack Network Manual, monitors use tree leaves and aquatic insects to determine the health of their stream and understand its ecology.

Environmental law may be the one institution standing between us and planetary exhaustion. It is also an institution that needs to be reconciled with human liberty and economic aspirations. This course considers these issues and provides a tour though existing legal regimes governing pollution, water law, endangered species, toxic substances, environmental impact analyses, and environmental risk.

How's My Waterway? was designed to provide the general public with information about the condition of their local waters based on data that states, federal, tribal, local agencies and others have provided to EPA. Water quality information is displayed on 3 scales in How's My Waterway; community, state and national. More recent or more detailed water information may exist that is not yet available through EPA databases or other sources.

Cyanobacteria HABs (CyHABs or CyanoHABs) typically occur in nutrient rich, warm surface water bodies and can produce potent toxins. Occurrence of CyHABs is increasing globally, and blooms are accompanied by sporadic reports of human and animal illnesses and deaths. This webinar will summarize the state of the science and describe how a One Health approach to CyHABs can inform human health risks.

Harmful algal blooms (HABs) occur when algae - simple photosynthetic organisms that live in the sea and freshwater - grow out of control while producing toxic or harmful effects on people, fish, shellfish, marine mammals, and birds. There are many kinds of HABs, caused by a variety of algal groups with different toxins. The HABs in fresh and marine waters are usually very different, but they overlap in low salinity estuaries (places where rivers meet the sea). ... States have rigorous monitoring programs to ensure that commercially harvested fish and shellfish are safe to eat.

Harmful algal blooms (HABs), sometimes known as "red tide", occur when certain kinds of algae grow very quickly, forming patches, or "blooms", in the water. These blooms can emit powerful toxins which endanger human and animal health. Reported in every coastal state, HABs have caused an estimated $1 billion in losses over the last several decades to coastal economies that rely on recreation, tourism, and seafood harvesting. Blooms can lead to odors that require more costly treatment for public water supplies.

[Nonpoint source pollution] is generated by all of us, a product of millions of actions that we take each day, including activities such as applying pesticides, washing our cars, or walking our pets. However, by becoming more aware of the effect of our actions on our rivers, streams, lakes, bays and seashores, we can all develop more water-friendly habits and practices that will enable us to protect and restore the quality of these waters.

Flint, Michigan, tried to save money on water. Now its children have lead poisoning. Joe Posner explains.

The water we drink, the places we swim, and the plants and animals within our environment are increasingly threatened by one thing--pollution. Agricultural practices, household uses, urban runoff, and other sources significantly impact our communities and the world. The ways we use water, the pollutants found in it, and the issues that challenge its quality must be understood if we are to protect this vital resource. This award-winning program examines the threats, surveys the experts, and challenges you to make a difference through the choices you make.