Tag Archives: oceans

Rowing 500 days on the open ocean by yourself, the Roz Savage podcast

I wanted to know what pushed Roz to do the things she does, so I pressed record and asked her. More:  Rowing 500 days on the open ocean by yourself, the Roz Savage podcast Related ArticlesJack and Coke, no straw pleaseThe best ocean ads you’ll ever seeMiami Beach chapter leader, surfer and meteorologist shares perspective on beaches

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Rowing 500 days on the open ocean by yourself, the Roz Savage podcast

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Climate Campaigners Try Flooding the (Comment) Zone

In a new tactic, climate campaigners aim to flood the comment zone when global warming is news. Source:   Climate Campaigners Try Flooding the (Comment) Zone Related ArticlesThe Fire Hose: Mink Exports, Planetary Limits, Nuclear BenefitsKnowosphere at Work: Farmer-to-Farmer Video Advice Boosting YieldsScientists See Cruelty in Killing Method Used in Japan’s Dolphin Roundup

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Climate Campaigners Try Flooding the (Comment) Zone

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Jack and Coke, no straw please

The Miami chapter gets creative with Spring Breakers. Link to original:   Jack and Coke, no straw please Related ArticlesThe best ocean ads you’ll ever seeMiami Beach chapter leader, surfer and meteorologist shares perspective on beachesThis is and is not what a beach should look like

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Jack and Coke, no straw please

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Japan Just Opened Up a Whole New Source for Fossil Fuels

An artist’s rendering of methane hydrate’s small-scale structure, with a methane molecule in green and gold trapped within a blue and silver cage of water. Photo: Masakazu Matsumoto

Found deep underwater in coastal oceans worldwide, a slushy mix of natural gas and water ice is on path to becoming an energy source of future, reports the BBC. Japanese researchers announced that, for the first time, they have managed to successfully extract useful natural gas from the mix, known as a methane clathrate.

Previous work on methane clathrates found on land have been used to produce natural gas, but this is the first time that ocean floor deposits have been tapped. The stores of offshore methane clathrates around Japan, says the BBC, are estimated at around 1.1 trillion cubic metres of the mix, enough to supply “more than a decade of Japan’s gas consumption.” The United States Geological Survey, says The Washington Post, estimates that gas hydrates worldwide “could contain between 10,000 trillion cubic feet to more than 100,000 trillion cubic feet of natural gas.”

Some of that gas will never be accessible at reasonable prices. But if even a fraction of that total can be commercially extracted, that’s an enormous amount. To put this in context, U.S. shale reserves are estimated to contain 827 trillion cubic feet of natural gas.

Japan says that the technology to usefully produce natural gas from methane clathrates is still around five years off.

Burning natural gas emits less carbon dioxide than burning coal, and replacing coal or other fossil fuels with natural gas is often looked at as a a way to limit global warming. However, fossil fuels are still fossil fuels, and burning this new source of energy could do a wondrous amount of damage. The Washington Post:

The U.S. Geological Survey estimates that there’s more carbon trapped inside gas hydrates than is contained in all known reserves of fossil fuels.

…Bottom line: It could prove impossible to keep global warming below the goal of 2°C if a significant fraction of this natural gas gets burned.

The New York Times:

“Gas hydrates have always been seen as a potentially vast energy source, but the question was, how do we extract gas from under the ocean?” said Ryo Matsumoto, a professor in geology at Meiji University in Tokyo who has led research into Japan’s hydrate deposits. “Now we’ve cleared one big hurdle.”

The other big hurdle is deciding whether this is a path worth following.

More from Smithsonian.com:

A Massive Field Of Frozen Greenhouse Gas Is Thawing Out

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Japan Just Opened Up a Whole New Source for Fossil Fuels

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Sharks and Manta Rays Earn Stronger International Protection

Underwater photographer and conservationist Shawn Heinrichs made this haunting video in order to celebrate and draw attention to the plight of rapidly declining manta rays. Now, his and others’ efforts have finally paid off.

If all goes well, some species of sharks will no longer turn up in a bowl of sharkfin soup, and manta rays will no longer have their gill rakers cut out for use in traditional Chinese medicine—at least not legally. In Bangkok this week, countries from around the world voted to give all manta rays and several species of shark official protection under the Convention on the International Trade in Endangered Species (CITES). The decision will be announced officially on Thursday, but things look good.

To gain the new protective status, a handful of countries, including the U.S., Brazil, Colombia, Denmark, Mexico and Ecuador, nominated the species they felt needed further protection. On that list was three species of hammerhead sharks, oceanic white tip sharks, porbeagles (a kind of mackerel shark) and all manta rays. Each of these four groups received more than 90 country votes. Two-thirds of the CITES 177 member countries must vote in favor for new status labels to pass.

The Guardian explains the severity of the current situation for sharks:

Sharks are highly sought after but are slow to mature and have few offspring, making them extremely vulnerable to overfishing.

The fins of the scalloped hammerhead are among the most valuable of all and it is estimated that 2 million a year are killed.

Scientists estimate that about 100m sharks are killed by humans every year, representing 6-8% of all sharks and far above a sustainable level.

As for manta rays, the Guardian continues:

Their populations are being devastated off Sri Lanka and Indonesia to feed a newly created Chinese medicine market in which their gill plates, used to filter food from the ocean, are sold as a purifying tonic. Around 5,000 a year are killed, generating $5m for traders, but where protected they bring in $140m from tourism.

The New York Times Green Blog explains what the protection would mean for species:

If the animals gain protection under the Convention on International Trade in Endangered Species, or Cites, their trade will have to be regulated by the countries from which they are exported. Shipments of manta gill rakers or other parts will require permits, and the exporting country will need to assure that hunting of the species is sustainable.

Of course, just because trade in manta rays and some sharks will likely soon be regulated does not mean they will shake off the threat of extinction overnight. Many of the world’s most endangered and vulnerable species—think tigers and black rhinos—are fully protected but still turn up on the wildlife black-market. Cultural demand for many of these species runs deep. Shark fin soup, for example, is a traditional staple of Chinese weddings so probably will not be dropped from the menu lightly, one delegate told the Guardian. “It would be like telling the French not to have champagne at their wedding,” she said.

But still, the new status rulings will hopefully bring more attention to the problem and make it easier for officials to enforce protective rules and prosecute those who violate them.

More from Smithsonian.com:

Dance with the Devilfish  
What’s In Your Shark Fin Soup? 

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Sharks and Manta Rays Earn Stronger International Protection

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Big Social Costs Tallied in Regions With Scant Energy Access

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Big Social Costs Tallied in Regions With Scant Energy Access

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Obama’s ‘All of the Above’ Energy and Environment Nominees

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Obama’s ‘All of the Above’ Energy and Environment Nominees

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An Addendum

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An Addendum

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Fracking Under a Historic Farm

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Fracking Under a Historic Farm

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