Oxygen depletion of coastal waters, or ocean dead zones, caused by agricultural runoff and burning of fossil fuels has negative impacts on marine biodiversity.

Dec 23, 2009 - Laurence O'Sullivan

Water pollution tends to make its way into the ocean even if it doesn't begin there. Runoff and other nonpoint pollution sources effect all life. What are some solutions?

Mar 25, 2010 - Jason Parent

Low-oxygen 'dead zones' caused by nutrient pollution are spreading through coastal ecosystems worldwide. Climate change may make this serious environmental problem worse.

Sep 4, 2008 - Ian Parnell

Oceans cover 70% of the planet and have a huge impact on the planet's climate.

Nov 10, 2009 - Sarah Blakemore

The positive impact of eating vegetarian on the environment is twofold. It prevents pollution and avoids waste of resources. This part deals with pollution.

Feb 24, 2009 - Martin Bohn

The unexpected impact of increased corn-ethanol production on a coastal ecosystem illustrates the challenge of creating sustainable solutions to environmental problems.

Nov 2, 2008 - Ian Parnell

Trash Vortex, the Eastern Garbage Patch and the Asian Trash Trail are all used to describe the island of rubbish, floating in the Pacific Ocean.

Jan 11, 2010 - Colette McEnery-Lane

Learn about the many sources of ocean water pollution including oil spills, plastics, and most importantly land based runoff.

Jan 6, 2011 - Megan Jungwi

Four Congressional Acts control pollution in U.S. waters: the Clean Water Act; the Ocean Dumping Act; the Oil Pollution Act; and the Coastal Zone Management Act.

Nov 16, 2009 - Jason Parent

It's natural to suppose that anything happening in the ocean can't possibly affect you. But evidence shows it might be necessary to rethink that idea.

Feb 3, 2011 - Ronn Hanley

Travelling five times faster than in air, sound is everything underwater. As oceans get noisier, marine life is suffering in ways we are yet to understand.

Mar 27, 2012 - Sarah Curran-Ragan

Fuels used for electricity generation and vehicle propulsion are a major source of thermal pollution, harming aquatic organisms and causing global warming.

Sep 28, 2010 - Zeeshan Amin

There are already dead zones in the Gulf of Mexico. To what extent will the recent oil spill impact on these areas?

Jul 5, 2010 - Fleur Hupston

Hypoxia, low-oxygen conditions in marine habitats can be natural or human induced.

Dec 14, 2008 - Esther Eder

A huge expanse of debris, known as the "Great Pacific Garbage Patch", is growing at an alarming rate. Is there a solution in sight?

Aug 19, 2011 - Louise Jones

Many forms of pollution threaten the world ocean ecosystem. It's widely known that chemicals cause pollution, but noise pollution also disrupts animal life.

Jan 1, 2011 - Angela Libal

Any chemical released on land travels into water, and any chemical on land or in water can enter the food chain and accumulate in the bodies of animals.

Jan 28, 2011 - Angela Libal

A report from the Chesapeake Bay Foundation (CBF) describes how pollution is killing crabs.

Jan 2, 2009 - Sara E. Lewis