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Tiny plant-like organisms called zooxanthellae live in the tissues of many animals, including some corals , anemones, and jellyfish , sponges, flatworms, mollusks and foraminifera . These microscopic algae capture sunlight and convert it...
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Coral reefs are beautiful, vibrant ecosystems that house roughly one quarter of...
Dr. Karen Bice studies the foraminifera in ocean sediment to better understand...
At the ends of the Earth, life thrives despite extreme conditions. In the...

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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 summertime channel created by the...
Over a 10-year period NOAA scientists have collected 72,000 seawater samples...
Ultraviolet light illuminates the growth rings in a cross-section of a 44-...

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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...

The Ocean Blog

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...
How will changes in temperature affect glaciers and ice sheets? Dr. Sarah Das from the Woods Hole Oceanographic Institution explores this phenomenon first hand in Greenland, where she studies how the...
“Let’s talk about the Earth, really talk about survival. We can talk about the Poles where the cold is unrivaled.” Rappers wrap their heads around climate change in this music video. More about...
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 -caused warming. That small shift is...
Scientists document a direct relationship between the extent of sea ice and polar bear survival. Future projected reductions in the extent of annual sea-ice due to global warming may result in the...
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...
Today, carbon dioxide (CO2) levels in our atmosphere are the highest they've been in 15 million years. It's the cumulative impact of an ever-expanding population -- 7 billion people and rising -- and...
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...
From left to right, Dr. Ian MacDonald, Dr. Russ Hopcroft, Dr. Kathleen Crane, and Dr. Mike Vecchione , members of the 2002 Hidden Ocean Arctic expedition. Part of their mission – to reconstruct the...
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...
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 .
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...
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...
Earth as seen from a satellite. More about climate change can be found in our climate change featured story .
Recorded Feb. 15, 2011, this video from the Third Student Summit on the Ocean and Coasts includes public awareness and education presentations that were presented by delegations from the North...
Sponsored by the United Nations, the Global Ocean Observing System is committed to sharing observations about the ocean to all nations. Some of the data they collect comes from buoys like the one...
In December 2009, thousands of leaders and activists from across the planet converged in Copenhagen for the United Nations Climate Change Summit. Debate rages as to whether the summit achieved any...
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)...
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