Pacific Ocean warming faster than it has in 10,000 years, study findsLast Updated on 2013-11-05 07:00:32By Tony Barboza
Los Angeles Times
LOS ANGELES — Scientists have struggled to explain a recent slowdown in the rise of global surface temperatures while skeptics have seized on the 15-year lull to cast doubt on the science of climate change.
A new study offers one explanation of where much of the heat trapped by greenhouse gas emissions is going: the ocean.
Scientists found that parts of the Pacific Ocean are absorbing heat faster than they have over the past 10,000 years. The results, published this past week in the journal Science, suggest seawater is capturing far more energy than previously thought, for now sparing land-dwellers some of the worst effects of climate change.
The ocean’s heat content, which has been measured since the 1960s, accounts for about 90 percent of the earth’s warming, the study says, making it a more reliable indicator of climate change... More »
Ocean Warming Faster Now Than in 10,000 YearsLast Updated on 2013-11-02 10:48:37Pacific Ocean waters warmed 15 times faster in the last six decades than they did over the last ten millennia.
Published October 31, 2013
The ocean depths may store more heat from global warming than suspected, suggests a 10,000-year record of past ocean temperatures measured in Indonesian seafloor cores.
At the same time, since 1950 Pacific Ocean waters have been warming at a rate 15 times faster than the rest of the seafloor, as reported in the journal Science.
"Under normal, natural conditions the oceans are a buffer for temperature changes in the atmosphere," says study lead author Yair Rosenthal of Rutgers University in New Jersey. "But right now, we are completely out of equilibrium." (See "What is Global Warming?")
Because the ocean... More »
Ocean Deteriorating More Rapidly Than ThoughtLast Updated on 2013-10-15 18:06:24By Alex Kirby, Climate News Network
LONDON – Marine scientists say the state of the world’s oceans is deteriorating more rapidly than anyone had realized, and is worse than that described in last month’s U.N. climate report from the Intergovernmental Panel on Climate Change.
They say the rate, speed and impacts of ocean change are greater, faster and more imminent than previously thought – and they expect summertime Arctic sea ice cover will have disappeared in around 25 years.
Their review, produced by the International Program on the State of the Ocean (IPSO) and the International Union for the Conservation of Nature (IUCN) and published in the journal Marine Pollution Bulletin, agrees with the IPCC that the oceans are absorbing much of the warming caused by carbon dioxide and other greenhouse gases.
But it says the impact of this warming, when combined... More »
Scientists excited about new lab at bottom of Pacific OceanLast Updated on 2013-05-19 00:00:00SEATTLE (AP) — Scientists are eager for access to information from a quarter-billion dollar lab at the bottom of the Pacific Ocean that they hope will teach them about climate change, earthquakes and even the origins of life on Earth and other planets.
The $239 million National Science Foundation project will install video cameras, seismic monitors and other gauges along a volcano in deep waters off the Pacific Northwest coast, giving researchers the ability to monitor activity 2 miles below the ocean surface.
The project could potentially warn of earthquakes that would threaten the Seattle area, according to scientists.
"It really will make a huge difference," said University of Washington oceanography professor John Delaney, who is leading the effort.
Thanks to nearly 600 miles of electrical wires and Internet cables this project will provide continuous information, separating it... More »
Carbon Dioxide at NOAA’s Mauna Loa Observatory reaches new milestone: Tops 400 ppmLast Updated on 2013-05-10 00:00:00Contact: John Ewald, 240-429-6127
NOAA's Mauna Loa Observatory after a snowstorm. Courtesy of Mary Miller, Exploratorium
On May 9, the daily mean concentration of carbon dioxide in the atmosphere of Mauna Loa, Hawaii, surpassed 400 parts per million (ppm) for the first time since measurements began in 1958. Independent measurements made by both NOAA and the Scripps Institution of Oceanography have been approaching this level during the past week. It marks an important milestone because Mauna Loa, as the oldest continuous carbon dioxide (CO2) measurement station in the world, is the primary global benchmark site for monitoring the increase of this potent heat-trapping gas.
Carbon dioxide pumped into the atmosphere by fossil fuel burning and other human activities is the most significant greenhouse gas (GHG) contributing to climate change. Its concentration has increased every year... More »
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