NASA Scientist Sees Growing Heat Storage in Ocean

Monday, May 24th, 2010

Often when going to the beach the common complaint is that the ocean is too cold. They appear to be warming up a bit. The upper layer of Earth’s ocean has warmed since 1993, indicating a strong climate change signal, according to a new international study co-authored by oceanographer Josh Willis of NASA’s Jet Propulsion Laboratory, Pasadena, Calif. The energy stored is enough to power nearly 500 100-watt light bulbs for each of the roughly 6.7 billion people on the planet.

“We are seeing the global ocean store more heat than it gives off,” said John Lyman, an oceanographer at the National Oceanic and Atmospheric Administration’s (NOAA) Joint Institute for Marine and Atmospheric Research, who led the study that analyzed nine different estimates of heat content in the upper ocean from 1993 to 2008.

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BP Releases Live Video of Spill, Causing Crash of Website

Sunday, May 23rd, 2010

oilFor almost a month, BP monitored oil and natural gas gushing from the broken riser and blow-out preventer with remote operated vehicles (ROVs). And for almost a month, they kept all of that video to entirely to themselves. But that’s about to change.

In the hours and days immediately following the explosion on the Deepwater Horizon offshore drill rig in the Gulf of Mexico, the federal response was centered on firefighting, search and rescue. For nearly three days, although the rig was burning, the wellhead and riser assembly were still in tact and there was no leaking oil to speak of. And then, the worst-case scenario happened:  the Deepwater Horizon sank.

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Pacific Garbage Patch Gets Its Own Music Video

Friday, April 30th, 2010

A music video released last week as part of Earth Day celebrations looks at consumer culutre and the very real effect it is having on our oceans, as seen in the Pacific Ocean garbage patch.

The Great Pacific Garbage Patch is a Texas-sized vortex of marine litter consisting of pelagic plastics, chemical sludge, and other debris in the Northern Pacific ocean.

Musician Peter Buffet uses his song to urge people to change their wasteful habits, and in turn, lessen the effects of plastic waste products on the planet.

The video, released in conjunction with DoSomething.org, is shown below: (more…)

Where Offshore Wind Power Remains Far from Reach

Tuesday, April 27th, 2010

To date not a single offshore wind turbine been built in the United States. Meanwhile Europe, China and Japan are far along in developing a water-based wind power industry. All one needs is a strong and steady wind as well as a relatively easy way to connect o the power grid so as to transmit the power gained from the wind. Most people think of wind power from various land based operations. However, it can be done by basing the wind turbine in the sea.

A wind farm is a group of wind turbines in the same location used for production of electric power. Individual turbines are interconnected with a medium voltage power collection system and communications network. At a substation, this medium voltage electrical current is increased in voltage with a transformer for connection to the high voltage transmission system.

Near shore turbine installations are on land within 5 miles of a shoreline or on water within ten miles. These areas are good sites for turbine installation, because of wind produced by convection due to differential heating of land and sea each day. Wind speeds in these zones share the characteristics of both onshore and offshore wind, depending on the prevailing wind direction. (more…)

‘High Def’ Underwater Imaging Developed

Tuesday, April 6th, 2010

U.S. researchers have developed broadband acoustic systems that they say will improve the ability to count and classify fish and zooplankton, an advance they liken to jumping from black and white television to high-definition TV.

While oceanographers have long used acoustic measurements to determine what lies under the sea, existing technologies use sound waves that measure only one or a few frequencies, producing data that can be ambiguous and open to different interpretations, particularly for small fish and zooplankton. (more…)

Obama Proposal Would Allow Expanded Offshore Drilling

Wednesday, March 31st, 2010

The Obama administration is proposing to open vast areas of open water along the Atlantic coast, in the Gulf of Mexico, and off the northern coast of Alaska to oil and natural gas drilling.

The proposal would end a longtime moratorium on drilling from Delaware to central Florida and would affect nearly 167 million acres of ocean and open 24 million acres in the eastern Gulf to development.

It would also authorize steps toward determining how much oil and natural gas lies off the coast of the Middle Atlantic and Southern states.

While the dramatic policy shift may gain some Republican support for the administration’s energy and climate initiatives, it is expected to alienate many environmental groups and Democrats who oppose expanded offshore drilling because of potential environmental impacts.

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Lower Ocean Oxygen Levels Predict Catastrophic Change

Monday, March 29th, 2010

There is a cascade failure going on in the world’s oceans that promises nothing but trouble in the future, and the problem stems in part from agricultural practices developed over the last half-decade aimed at growing more food on the same amount of land to feed rising populations.

A cascade failure is the progressive collapse of an integral system. Many scientists also call them negative feedback loops, in that unfortunate situations reinforce one another, precipitating eventual and sometimes complete failure.

The agricultural practices relate to “factory farming,” in which farmers grow crops using more and more chemical fertilizers, specifically nitrogen and phosphorus, which are the first two ingredients (chemical symbols N and P) listed on any container or bag of fertilizer. The last is potassium, or K. (more…)

Oceans’ Ability to Absorb CO2 May be Diminishing, New Study Says

Friday, November 20th, 2009

Southern OceanA study of the accumulation of carbon dioxide in the world’s oceans from 1765 to the present shows that as humanity pumps more CO2 into the atmosphere, the capacity of the world’s oceans to continue absorbing carbon appears to be decreasing.

Researchers from Columbia University and NASA estimate that since 2000, the proportion of fossil-fuel emissions absorbed by the oceans may have declined by as much as 10 percent. In effect, researchers say that industrial activity has been producing so much C02 since 1950 that the oceans are slowly becoming saturated with the gas.
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Scientists Back Reduction in Coastal Drilling

Tuesday, October 13th, 2009

coastdrillScientists at the National Oceanic and Atmospheric Administration (NOAA) have recommended dramatically scaling back oil drilling plans off U.S. coasts and have proposed a ban on oil and gas exploration in the Arctic until oil companies significantly improve their ability to prevent and clean up oil spills.

The non-binding recommendations to U.S. Interior Secretary Ken Salazar represent a stark reversal from the pro-drilling policies of the Bush administration; the new administrator of NOAA, Jane Lubchenco, is an oceanographer who has vowed to restore science to federal environmental policy.

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Water issues: Green sub searches for jobs and squid in California

Thursday, June 25th, 2009

picture-2A little two-man submarine in Lake Tahoe, California, is searching for jobs under the water.

What’s down there? A nonprofit called the Undersea Voyager Project is getting ready to launch a five-year mission in 2011 to look for ideas on how to restore endangered bodies of water around the world, USA Today reports.

The one problem with water issues is that it’s hard for people to be concerned about what they can’t see.

Only 1 percent of the water column and 3 percent of the ocean floor has been explored on Planet Earth, says the group, led by Scott Cassell.

Project leaders hopes the sub’s explorations will attract attention on pollution and overfishing.

(more…)

 
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