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In marshlands along the coast of the Gulf of Mexico, it's easy to hear the sharp, buzzing calls of seaside sparrows ( Ammodramus maritimus )—even if they can be hard to spot. These five-inch,...
In the Pacific Ocean, four ocean currents merge to form the North Pacific gyre...
On April 27, 1986, an estimated 50,000 barrels of medium-weight crude oil...
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As a research diver for the US Environmental Protection Agency (EPA), one of my...

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For centuries, the Baltic Sea has provided European flounder ( Platichthys flesus ) and other fish for millions of people to consume. Since the early 1980s, the nations surrounding the sea have coordinated their efforts to...
In the ocean, microscopic forms of algae, known as dinoflagellates , can "...
In the aftermath of the Gulf oil spill, what is the effect of oil on...

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The Gulf oil spill is recognized as the worst oil spill in U.S. history. Within days of the April 20, 2010 explosion and...
An estimated 5 tons of plastic are fed to albatross chicks each year at Midway Atoll.
Algae has overtaken this coral reef off heavily populated Kiritimati, or Christmas Island. Few fish swim in the murky waters. The causes include pollution, overfishing, and increased water...
Mark Dodd, a wildlife biologist from Georgia's Department of Natural Resources, surveying oiled sargassum seaweed in the Gulf of Mexico after the Deepwater Horizon oil spill in 2010. Learn more about...
A still from a video documenting a remote beach in Curaçao that's been blanketed in plastic garbage. You can read how this marine debris impacted on researcher on our blog .
A scientist, Chris Reddy from Woods Hole Oceanographic Institution, collects oil-laden "sand patties" on a Louisiana beach two years after the oil spill. Watch a video of Chris Reddy talking about...
Dr. Chris Reddy, an environmental chemist from Woods Hole Oceanographic Institution studies the long-term impacts of oil spills. Watch as he digs beneath the surface in Massachusetts’ Wild Harbor...
Sometimes called the rainforests of the sea, coral reefs are incredibly diverse and complicated systems. Because of this complexity, it can be a challenge to manage and protect reefs—and sometimes...
2012 marked the 70th anniversary of a series of World War II battles in the Pacific Ocean and on its islands, which are collectively known as the “Pacific theatre.” While the battles are long over,...
The National Museum of Natural History's Department of Invertebrate Zoology has developed an online map that provides information about invertebrates in the National Collection from areas impacted by...
A placard warns residents that water—and anything else—that goes own this storm drain makes its way into the Potomac River and, eventually the ocean.
The impacts of derelict fishing gear on the Northwest Hawaiian Islands coral reef ecosystem are numerous. A primary effect of reef entanglement is structural damage to the coral substrate that...
Coral reefs are beautiful, vibrant ecosystems that house roughly one quarter of all marine species and provide billions of dollars in products and services to humans each year. But they are also...
When oil gushed out of the Deepwater Horizon oil rig in the Gulf of Mexico in spring and summer 2010, it was all anyone could talk about. Several years on, it’s much further from our minds—but that...
This r ainbow sheen on the sea surface is what it looks like when the oil bubbles make it to the sea surface.
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