Archive for January, 2012

New study may answer questions about enigmatic Little Ice Age

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According to a new study, the Little Ice Age began abruptly between A.D. 1275 and 1300, triggered by repeated, explosive volcanism, and was sustained for centuries by a self- perpetuating sea ice-ocean feedback system in the North Atlantic Ocean....

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Was the Little Ice Age triggered by massive volcanic eruptions?

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Scientists suggest that the Little Ice Age was triggered by an unusual, 50-year episode of four massive volcanic eruptions. This led to an expansion of sea ice and a related weakening of Atlantic currents that caused the cool period to persist for centuries....

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Warming in the Tasman Sea, near Australia, a global warming hot spot

Oceanographers have identified a series of ocean hotspots around the world generated by strengthening wind systems that have driven oceanic currents, including the East Australian Current, polewards beyond their known boundaries....

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Observing the Ocean Just Got Easier

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Observing the Ocean Just Got Easier! The U.S. Integrated Ocean Observing System, or IOOS, is a vast, coordinated network of people and technology working together to deliver data on our coastal waters, Great Lakes, and oceans. Recently, several IOOS regional associations have improved their online offerings, making it easier than ever to get the ocean data you need.

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Long-term response plan for possible Cuban oil spill

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Researchers are working on long-term sustainability study to prepare for an oil spill that could catastrophically impact Florida....

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What do killer whales eat in the Arctic?

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Killer whales are the top marine predator. The increase in hunting territories available to killer whales in the Arctic due to climate change and melting sea ice could seriously affect the marine ecosystem balance. New research has combined scientific observations with Canadian Inuit traditional knowledge to determine killer whale behavior and diet in the Arctic....

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NASA study solves case of Earth’s ‘missing energy’

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Two years ago, scientists released a study claiming that inconsistencies between satellite observations of Earth's heat and measurements of ocean heating amounted to evidence of "missing energy" in the planet's system. Where was it going? Or, they wondered, was something wrong with the way researchers tracked energy as it was absorbed from the sun and emitted back into space? An international team of atmospheric scientists and oceanographers set out to investigate the mystery....

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What really happened prior to ‘Snowball Earth’?

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The large changes in the carbon isotopic composition of carbonates which occurred prior to the major climatic event more than 500 million years ago, known as "Snowball Earth," are unrelated to worldwide glacial events, a new study suggests....

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NASA infrared satellite instrument sees tropical storm Iggy growing in strength

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The AIRS infrared instrument that flies on NASA's Aqua satellite has been providing forecasters with the cloud top temperatures in the Southern Indian Ocean's ninth tropical cyclone, which has officially been renamed Iggy. AIRS data showed that the area of strong thunderstorms around Iggy's center has expanded in area over the last day....

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Ecologists capture first deep-sea fish noises

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Fish biologists conducted one of the first studies of deep-sea fish sounds in more than 50 years, 2,237 feet under the Atlantic. With recording technology more affordable, fish sounds can be studied to test the idea that fish communicate with sound, especially those in the dark of the deep ocean....

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