The nation's ocean and coastal agency: Supporting coastal communities, promoting a robust economy, and protecting coastal and marine ecosystems
digging for clams in Washington State infographic showing green infrastructure Lake Erie harmful algal bloom
a wetland
What is a wetland?

NOAA classifies wetlands into five general types: marine (ocean), estuarine (estuary), riverine (river), lacustrine (lake), and palustrine (marsh).

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View of Hurricane Katrina destruction in the City of New Orleans taken from a U.S. Coast Guard helicopter during an aerial pollution survey, September 5, 2005, New Orleans, Louisiana
Hurricane Katrina

Ten years after Hurricane Katrina, we talk with two pollution responders from NOAA’s Office of Response and Restoration who were working in Louisiana after the storm.

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Back to School

Open the door to earth science for your students! Access our free, online teaching tools and curricula. We're building ocean, coastal, and climate literacy for students and educators.

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About NOS

We translate science, tools, and services into action to address threats to coastal areas such as climate change, population growth, port congestion, and contaminants in the environment—all working towards healthy coasts and healthy economies.

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The most infamous storm in U.S. history, Hurricane Katrina carved a path of destruction from Miami to New Orleans, and up the Eastern United States. The storm reached a maximum intensity of Category 5 status, with 175 mph sustained winds. Hurricane Katrina made landfall in the morning of August 29, 2005. This infrared satellite imagery shows the storm's intensity: white is the most intense, followed by red, green, and blue.

Hurricane Katrina: 10 years later

Conversations about coastal community resilience have changed tremendously in the past decade. Before Katrina, many people considered hurricanes and other hazardous weather events as trials that happened to someone else.

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Exxon Valdez

Oil Spill Pollution Act at 25 Years

Thanks to the Oil Pollution Act, federal and state agencies can more easily evaluate the full environmental impacts of oil spills — and then enact restoration to make up for that harm.

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