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Gwen Noda

Watch. Explore. Discover. | Ocean Today - 0 views

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    Ocean Today Kiosk Online This website provides access to current and archived videos of the Ocean Today kiosk at the Sant Ocean Hall in the Smithsonian Institution's National Museum of Natural History. The Ocean Today Kiosk is a dynamic, visitor-friendly multi-media experience that illustrates both the ocean's influence on humans and their influence upon the ocean. The website offers a transcript of the video along with links for more information.
Gwen Noda

Sens. Kerry, Snowe, Rockefeller, Brown, and Whitehouse Introduce Bill Supporting Fish, ... - 0 views

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    "Washington, DC - 03/12/2012 - The Pew Environment Group commended Sens. John Kerry (D-Mass.), Olympia J. Snowe (R-ME), John D. Rockefeller (D-WV), Scott Brown (R-MA), and Sheldon Whitehouse (D-RI) today for introducing the Fisheries Investment and Regulatory Relief Act (FIRRA). A companion bill is expected in the House by Reps. Barney Frank (D-MA) and Frank Guinta (R-NH). This bipartisan legislation would ensure that key programs critical to sustainably managing ocean fish populations, and the fishermen and communities that depend on them, would receive increased and sustained funding. "
Gwen Noda

Inter-Academy Panel statement on Ocean Acidification - Publications - The Royal Society - 0 views

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    The Inter-Academy Panel on International Issues (or IAP) has today launched a statement signed by 100 of the world's leading science academies calling for ocean acidification to be placed on the agenda for the UNFCCC talks being held in Bonn over the next two weeks.
Gwen Noda

Penguinscience - understanding penguin response to climate and ecosystem change - 0 views

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    "Welcome to the Penguin Science Education Page! Here you will find fun and educational activities to help students learn about many interesting aspects of Adelie penguin life, history and their relationship to climate change. Students can also send questions to the researchers who study penguins, check the nests of penguins as they look today, and (if the season is right) even receive a postcard from Antarctica! Adelie Penguin's existence in the far south region of our planet is a fascinating subject. The average day in the life of a penguin is filled with adventure and drama, as they struggle to live and thrive in a challenging environment and changing climate. "
Gwen Noda

Jeremy Jackson: How we wrecked the ocean | Video on TED.com - 0 views

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    In this bracing talk, coral reef ecologist Jeremy Jackson lays out the shocking state of the ocean today: overfished, overheated, polluted, with indicators that things will get much worse. Astonishing photos and stats make the case.
Gwen Noda

YouTube - NASA: Climate Change And the Global Ocean [720p] - 2 views

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    We know climate change can affect us, but does climate change alter something as vast, deep and mysterious as our oceans? For years, scientists have studied the world's oceans by sending out ships and divers, deploying data-gathering buoys, and by taking aerial measurements from planes. But one of the better ways to understand oceans is to gain an even broader perspective - the view from space. NASA's Earth observing satellites do more than just take pictures of our planet. High-tech sensors gather data, including ocean surface temperature, surface winds, sea level, circulation, and even marine life. Information the satellites obtain help us understand the complex interactions driving the world's oceans today - and gain valuable insight into how the impacts of climate change on oceans might affect us on dry land.
Gwen Noda

Polar Bears Rooted in Ireland - 0 views

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    Polar Bears Rooted in Ireland Polar bears and brown bears were separate species by 110,000 years ago. But new genetic studies of fossils and modern bears have revealed some hanky-panky 45,000 years ago, when polar bears interbred with now-extinct Irish brown bears. Hybridization with brown bears is a concern today because declining sea ice cover is forcing polar bears to extend their range and come into contact with brown bears. To understand the implications of hybridization, Beth Shapiro, an evolutionary biologist at Pennsylvania State University, University Park, and her colleagues compared mitochondrial DNA from 8000-year-old polar bear fossils, modern samples of polar bears, and ancient Irish bear fossils. Figure "CREDIT: FOTOSEARCH (2)" Modern polar bear mitochondrial DNA was most similar to that of the extinct Irish brown bear, whereas extinct polar bears had different mitochondria. Thus modern polar bears come from Europe, not islands between Alaska and Siberia, as had been previously thought, the researchers reported in Current Biology. The finding shows that interbreeding occurred during past episodes of climate change didn't destroy a species. "The big question for conservation of polar bears is if hybridization occurs rapidly and in combination with other stressors, will that hybridization have more of a negative effect now than it did in the past," says Andrew Whiteley, a geneticist at the University of Massachusetts, Amherst. http://scim.ag/_polarbears
Gwen Noda

Could East Antarctica Be Headed for Big Melt? - 0 views

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    "The Orangeburg Scarp, a band of hard, crusty sediment teeming with tiny plankton fossils that runs from Florida to Virginia, marks an ancient shoreline where waves eroded bedrock 3 million years ago. That period, the middle Pliocene, saw carbon dioxide levels and temperatures that many scientists say could recur by 2100. The question is: Could those conditions also result in Pliocene-epoch sea levels within the next 10 to 20 centuries, sea levels that may have been as much as 35 meters higher than they are today? The answer, say climate scientists, may lie 17,000 kilometers away in East Antarctica. The East Antarctic Ice Sheet is the world's largest, a formation up to 4 km thick and 11 million km2 in area that covers three-quarters of the southernmost continent. Its glaciers were thought to sit mostly above sea level, protecting them from the type of ocean-induced losses that are affecting the West Antarctic Ice Sheet. But studies of ancient sea levels that focus on the Orangeburg Scarp and other sites challenge that long-held assumption. Not everybody believes the records from Orangeburg. But combined with several other new lines of evidence, they support the idea that parts of East Antarctica could indeed be more prone to melting than expected. "
Gwen Noda

Ocean Life | Ocean Today - 0 views

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    Life beneath the sea is amazing! Features spectacular imagery and video of life beneath the ocean surface (e.g., Sounds from the Sea, Whale Rescue, Coral Forests of the Deep).
Gwen Noda

Know Your Ocean | Science and Technology | Ocean Today - 0 views

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    NARRATOR: Even though the ocean covers seventy percent of the Earth's surface, people tend to know more information about land than the sea. As a result, our understanding of the ocean is often incomplete or full of misconceptions. How well do you know the ocean? You may think Earth has five separate oceans. They're clearly labeled on our maps. But, in actuality, these are all connected, and part of one global ocean system. Ever wonder why the ocean is blue? You may have heard its because the water reflects the color of the sky. Not quite. Sunlight contains all the colors of the rainbow. When it hits the ocean, it gets scattered by the water molecules. Blue light is scattered the most, which is why the ocean appears blue. Even more interesting is that floating plants and sediments in the water can cause light to bounce in such a way for the ocean to appear green, yellow, and even red! Another idea some people have is that the sea floor is flat. Actually, just like land, the sea floor has canyons, plains, and mountain ranges. And many of these features are even bigger than those found on land. You may also think that our ocean's saltwater is just a mix of water and table salt. Not so. Seawater's "salt" is actually made of dissolved minerals from surface runoff. That is, excess water from rain and melting snow flowing over land and into the sea. This is why the ocean doesn't have the same level of salinity everywhere. Salinity varies by location and season. Finally, you may have heard that melting sea ice will cause sea levels to rise. In reality, sea ice is just frozen seawater, and because it routinely freezes and melts, its volume is already accounted for in the ocean. Sea levels can rise, however, from ice that melts off land and into the ocean. Understanding basic facts about the ocean is important since it affects everything from our atmosphere to our ecosystems. By knowing your ocean, you are better prepared to help protect it.
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