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What is blue carbon? It's a term used to describe the carbon that is captured from the atmosphere by ocean ecosystems, mainly coastal mangroves, seagrasses and salt marshes. These coastal areas can hold up...
CREDIT: Flickr User Fabi Fliervoet 1. Bring Your Own The trash we "throw away"...
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Last September, the Citizens of the Sea blog series brought you a story of doom...
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Sea ice is typically viewed as the domain of physical and natural scientists,...

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Over a 10-year period, NOAA scientists have collected 72,000 seawater samples, and their data show that the ocean is becoming more acidic because of climate change . That small change in acidity is enough to dissolve the shells...
Ultraviolet light illuminates the growth rings in a cross-section of a 44-...
Remember playing Tetris? Originally developed in 1984, the video game in...

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Today, carbon dioxide (CO2) levels in our atmosphere are the highest they've been in 15 million years. It's the cumulative...
Swimmers brave the waters in the shadow of a coal-fired power plant. Coal plants like this one emit CO2 into our atmosphere which is warming the planet and altering the chemistry of the ocean. Learn...
It’s confirmed: both Antarctica and Greenland are losing ice —around 350 billion tons each year—and, as a result, sea level has risen 11.1 millimeters worldwide since 1992. This photo shows a...
Ocean acidification is sometimes called “climate change’s equally evil twin,” and for good reason: it's a significant and harmful consequence of excess carbon dioxide in the atmosphere that we don't...
Brian Huber studies fossil organisms known as “ forams ” to learn about climate change in this video snippet from the Smithsonian Marine Collections video . More about world climate change can be...
Ultraviolet light illuminates the growth rings in a cross-section of a 44-year-old deep-sea coral ( Primnoa resedaeformis ) collected off the coast of Newfoundland at about 1,300 feet (400 meters)...
A humboldt squid ( Dosidicus gigas )—also known as the jumbo squid—releases a cloud of ink at night in Mexico's Sea of Cortez. These large, carnivorous squids can reach more than 5 feet in length and...
Recorded Feb. 15, 2011, this video from the Third Student Summit on the Ocean and Coasts includes presentations that were given by delegations from the Mystic Aquarium (01:00), Gulf Coast Research...
This foraminifera was collected as it floated about 3 meters below the surface off the coast of Puerto Rico. The central dark area is the shell surrounded by spines. The tiny yellow dots are...
Warmer water is causing an outbreak of giant mucus blobs in the Mediterranean. These blobs are more than just unpleasant, they can harbor bacteria and viruses. Learn more about climate change.
Remember playing Tetris? Originally developed in 1984, the video game in which blocks of various shapes rain down and the player needs to find a way to fit them together is now ubiquitous. This TED...
Since summer 2013, starfish along both coasts of the United States have been dying in large numbers—and not gracefully. As their tissues collapse, the starfish (also called sea stars) start to look...
Students are working with the National Aquarium in Baltimore, Md., to develop an informal education plan that will communicate information about Chesapeake Bay marsh restoration and explain the...
Dr. Karen Bice studies the foraminifera in ocean sediment to better understand climate change. More about scientists studying world climate change can be found in our Climate Change featured story .
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