Category Archives: Dolphin

On Fate of Wild Horses, Stars and Indians Spar

Free-roaming horses are at the center of a passionate dispute playing out across the West about whether federal authorities should sanction their slaughter to thin the herds. Visit source: On Fate of Wild Horses, Stars and Indians Spar ; ;Related ArticlesThe Texas Tribune: Using the Law to Battle Zebra Mussels and Other Unwanted PestsDolphin Deaths Off East Coast Worry Federal Wildlife OfficialsAmid Pipeline Debate, Two Costly Cleanups Forever Change Towns ;

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On Fate of Wild Horses, Stars and Indians Spar

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The Texas Tribune: Using the Law to Battle Zebra Mussels and Other Unwanted Pests

Legislation passed this year aims to increase boaters’ awareness of how to prevent the spread of the mussels and other invasive species. Read more:   The Texas Tribune: Using the Law to Battle Zebra Mussels and Other Unwanted Pests ; ;Related ArticlesAlbany, Long Buried in Paper, Resolves to Save a Small ForestOn Fate of Wild Horses, Stars and Indians SparDolphin Deaths Off East Coast Worry Federal Wildlife Officials ;

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The Texas Tribune: Using the Law to Battle Zebra Mussels and Other Unwanted Pests

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Amid Pipeline Debate, Two Costly Cleanups Forever Change Towns

As the administration considers approval of the much-debated Keystone XL pipeline, cleanup efforts in two communities portend the potential hazards of transporting heavy Canadian crude. Source:   Amid Pipeline Debate, Two Costly Cleanups Forever Change Towns ; ;Related ArticlesDolphin Deaths Off East Coast Worry Federal Wildlife OfficialsThe Texas Tribune: Using the Law to Battle Zebra Mussels and Other Unwanted PestsOn Fate of Wild Horses, Stars and Indians Spar ;

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Amid Pipeline Debate, Two Costly Cleanups Forever Change Towns

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Sometimes a hybrid is greener than an electric car

Sometimes a hybrid is greener than an electric car

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Which car is greenest in your state? Find out.

If you live in California, the most climate-friendly car you can drive is a Toyota Prius Plug-In Hybrid. If you live in Ohio, you could go easier on the climate by driving a regular ol’ non-plug-in Prius. And in Vermont, the best pick would be an all-electric Honda Fit.

That’s according to a new report from Climate Central: “A Roadmap to Climate-Friendly Cars.” Here’s how the researchers explain the state-by-state differences:

An electric car is only as good for the climate as the electricity used to power it. And in states that rely heavily on fossil fuels like coal and natural gas for their electricity there are many conventional and plug-in hybrid electric vehicles that are better for the climate than all-electric cars.

The report includes a handy interactive map that shows you the top 10 choices for your state.

The researchers arrived at their conclusions after considering states’ electricity sources plus the amount of energy used in manufacturing cars — which, in the case of electric cars and their batteries, is a lot.

In 39 states, a high-efficiency, conventional gas-powered hybrid, like the Toyota Prius, is better for the climate (produces fewer total “lifecycle” carbon emissions) than the least-polluting, all-electric vehicle, the Honda Fit, over the first 50,000 miles the car is driven.

But in the four states with the cleanest grid electricity, “the mpg equivalents of the best electric vehicle are dazzling,” says the report, “ranging from more than 2,600 mpg in Vermont, to 380 mpg in Washington, 280 mpg in Idaho, and 200 mpg in Oregon.”

Cleanest, in this case, means lowest in greenhouse gas emissions. In the Pacific Northwest, emissions are low because so much electricity comes from hydropower. In Vermont, it’s because so much electricity comes from nuclear. Of course, goings-on at Fukushima remind us that nuclear is definitely not “clean” in all senses.

The bottom line, says Kevin Drum at Mother Jones: “figuring out the best car to drive is harder than you think.” Which gives me a perfect opportunity to plug Greg Hanscom’s new post on how to make cities more bike-friendly.

Lisa Hymas is senior editor at Grist. You can follow her on Twitter and Google+.

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Sometimes a hybrid is greener than an electric car

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Can an ice wall stop Fukushima radiation from leaking into the sea?

Can an ice wall stop Fukushima radiation from leaking into the sea?

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The Fukushima ice wall would not look anything like this.

It’s been almost two and a half years since the meltdown at the Fukushima nuclear plant and the place is still a huge, scary mess.

Here’s how The New York Times introduced this week’s grim news from the plant:

First, a rat gnawed through exposed wiring, setting off a scramble to end yet another blackout of vital cooling systems at the Fukushima Daiichi nuclear plant. Then, hastily built pits for a flood of contaminated water sprang leaks themselves. Now, a new rush of radioactive water has breached a barrier built to stop it, allowing heavily contaminated water to spill daily into the Pacific.

It turns out that radioactive water has been spilling into the sea almost since the initial disaster, at a rate of 75,000 gallons, or 300 tons, a day.

So now Tokyo Electric Power Company, or TEPCO, which owns the plant, has a plan to build an underground wall of frozen earth to stop the radioactive water leakage. NPR explains:

[T]o understand, you need to know the geography of Fukushima. There are three melted down reactors, and they’re all right on the coast. To the west, you have mountains. To the east, you have ocean. And so what’s happening is groundwater flows downhill. It flows down through the ruins of the plant and then flows out to the sea. …

So now, TEPCO has proposed literally creating a wall of ice around the plant. And what they’re talking about is not a wall above ground, but freezing the ground around the plant to stop water from flowing in. …

So the basic idea is that they run piping into the ground and they put coolant in the piping and that freezes the earth around the pipes, and it all sort of gradually forms together into a wall. This is something that civil engineers see sometimes, but it’s not that common. And certainly, the way they’re talking about using it in Fukushima is unprecedented. This wall will be nearly a mile around according to TEPCO. It would require more than 2 million cubic feet of soil to be frozen. But if it worked, then it may be the only way to keep water from flowing into the plant and contaminated water from flowing out.

The New York Times points out another challenge: “the wall will need to be consistently cooled using electricity at a plant vulnerable to power failures. The original disaster was brought on by an earthquake and tsunami that knocked out electricity.”

Japanese Prime Minister Shinzo Abe, fed up with continued ineptitude and deception from TEPCO, said this week that his government will get involved in the cleanup. It’s not clear what that involvement will look like, but it may include helping to fund the frozen wall — no small thing, as it’s expected to cost between $300 million and $400 million.

Lisa Hymas is senior editor at Grist. You can follow her on Twitter and Google+.

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Can an ice wall stop Fukushima radiation from leaking into the sea?

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Can a giant ice wall stop Fukushima radiation from leaking into the sea?

Can a giant ice wall stop Fukushima radiation from leaking into the sea?

Shutterstock

The Fukushima ice wall would not look anything like this.

It’s been almost two and a half years since the meltdown at the Fukushima nuclear plant and the place is still a huge, scary mess.

Here’s how The New York Times introduced this week’s grim news from the plant:

First, a rat gnawed through exposed wiring, setting off a scramble to end yet another blackout of vital cooling systems at the Fukushima Daiichi nuclear plant. Then, hastily built pits for a flood of contaminated water sprang leaks themselves. Now, a new rush of radioactive water has breached a barrier built to stop it, allowing heavily contaminated water to spill daily into the Pacific.

It turns out that radioactive water has been spilling into the sea almost since the initial disaster, at a rate of 75,000 gallons, or 300 tons, a day.

So now Tokyo Electric Power Company, or TEPCO, which owns the plant, has a plan to build an underground wall of frozen earth to stop the radioactive water leakage. NPR explains:

[T]o understand, you need to know the geography of Fukushima. There are three melted down reactors, and they’re all right on the coast. To the west, you have mountains. To the east, you have ocean. And so what’s happening is groundwater flows downhill. It flows down through the ruins of the plant and then flows out to the sea. …

So now, TEPCO has proposed literally creating a wall of ice around the plant. And what they’re talking about is not a wall above ground, but freezing the ground around the plant to stop water from flowing in. …

So the basic idea is that they run piping into the ground and they put coolant in the piping and that freezes the earth around the pipes, and it all sort of gradually forms together into a wall. This is something that civil engineers see sometimes, but it’s not that common. And certainly, the way they’re talking about using it in Fukushima is unprecedented. This wall will be nearly a mile around according to TEPCO. It would require more than 2 million cubic feet of soil to be frozen. But if it worked, then it may be the only way to keep water from flowing into the plant and contaminated water from flowing out.

The New York Times points out another challenge: “the wall will need to be consistently cooled using electricity at a plant vulnerable to power failures. The original disaster was brought on by an earthquake and tsunami that knocked out electricity.”

Japanese Prime Minister Shinzo Abe, fed up with continued ineptitude and deception from TEPCO, said this week that his government will get involved in the cleanup. It’s not clear what that involvement will look like, but it may include helping to fund the frozen wall — no small thing, as it’s expected to cost between $300 million and $400 million.

Lisa Hymas is senior editor at Grist. You can follow her on Twitter and Google+.

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Can a giant ice wall stop Fukushima radiation from leaking into the sea?

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Electric roads could make plugging in your EV a thing of the past

Electric roads could make plugging in your EV a thing of the past

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Alas, in real life, you can’t actually tell it’s electric.

One major barrier to bringing electric vehicles to the masses is range anxiety — not the fear that you left the stove on at home, but the fear that your EV will run out of juice before you can get to the next charging station. But creative solutions are in the works. This week, South Korea debuted the world’s first electric road, 15 miles of city streets with underground cables that charge EVs parked or driving above — no plug-in stations necessary.

In the city of Gumi, two commuter buses will be the first to test the program, and the city plans to add 10 more over the next two years. Known as Online Electric Vehicles or OLEVs, the buses have batteries about one-third the size of the typical electric car battery. Extreme Tech explains how it works:

Exact details of the system are hard to come by, but we believe that the power is delivered by cables that are around 12 inches (30cm) below the road surface. The power is transmitted wirelessly via Shaped Magnetic Field in Resonance (SMFIR), a technology developed by the Korea Advanced Institute of Science and Technology (KAIST) that essentially runs 100 kilowatts of power through some cables at a very specific frequency (20 kHz in this case), creating a 20 kHz electromagnetic field. The underside of the bus is equipped with a pick-up coil that’s tuned to pick up that frequency, and thus AC electricity is produced via magnetic resonance. (Read: How wireless charging works.) Transmission efficiency is an impressive 85% thanks to the “shaped” part of the technology, which targets the electromagnetic field at the vehicle, so that less energy is lost to the environment.

Because the batteries are so small, only 5 to 15 percent of the road needs to be dug up and electrified. Once equipped with the technology, roads can sense when an EV is coming, and only then do their charging powers activate — increasing efficiency and sparing all the unlucky non-EV drivers from being exposed to radiation (but don’t worry, if you do happen to pass over a charged-up section of the road, the level of radiation emitted is within international safety standards).

If America’s legendary highway system went electric, we could drive EVs to our hearts’ content and never have to worry about running out of fuel. And just think how many jobs would be created by digging up 5 to 15 percent of the nation’s road surface. More than by building the Keystone XL pipeline, I bet.

Claire Thompson is an editorial assistant at Grist.

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Electric roads could make plugging in your EV a thing of the past

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16 Medal of Freedom Honorees Are Named

President Bill Clinton and Oprah Winfrey will be among the 16 recipients of the nation’s highest civilian honor. Continued:   16 Medal of Freedom Honorees Are Named ; ;Related ArticlesDolphin Deaths Off East Coast Worry Federal Wildlife OfficialsAmid Pipeline Debate, Two Costly Cleanups Forever Change TownsThe Texas Tribune: Using the Law to Battle Zebra Mussels and Other Unwanted Pests ;

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16 Medal of Freedom Honorees Are Named

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Dolphin Deaths Off East Coast Worry Federal Wildlife Officials

Federal wildlife officials raised a formal alarm on Thursday over the deaths of bottlenose dolphins off the east coast, saying that a fast-spreading infection could be attacking them. See more here: Dolphin Deaths Off East Coast Worry Federal Wildlife Officials ; ;Related ArticlesAmid Pipeline Debate, Two Costly Cleanups Forever Change TownsThe Texas Tribune: Using the Law to Battle Zebra Mussels and Other Unwanted PestsOn Fate of Wild Horses, Stars and Indians Spar ;

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Dolphin Deaths Off East Coast Worry Federal Wildlife Officials

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Is Keystone XL a distraction from more important climate fights?

Is Keystone XL a distraction from more important climate fights?

Emma Cassidy

Say what you will about the anti-Keystone movement, but it’s gotten a lot of activists enraged and engaged.

A new article in Nature highlights a supposed rift among some scientists over Keystone XL: Is it a smart focus for climate activists or a distracting sideshow?

There doesn’t seem to be nearly as much of a rift as author Jeff Tollefson suggests, but he does talk to some scientists who are conflicted over the Keystone focus:

The issue has … divided the scientific community. Many climate and energy researchers have lined up with environmentalists to oppose what is by all accounts a dirty source of petroleum: emissions from extracting and burning tar-sands oil in the United States are 14–20% higher than the country’s average oil emissions. But other researchers say that the Keystone controversy is diverting attention from issues that would have much greater impact on greenhouse-gas emissions, such as the use of coal.

Some experts find themselves on both sides. “I’m of two minds,” says David Keith, a Canadian climate scientist who is now at Harvard University in Cambridge, Massachusetts. “The extreme statements — that this is ‘game over’ for the planet — are clearly not intellectually true, but I am completely against Keystone, both as an Albertan and somebody who cares about the climate.” …

For Ken Caldeira, a climate researcher at the Carnegie Institution for Science in Stanford, California, it is a simple question of values. “I don’t believe that whether the pipeline is built or not will have any detectable climate effect,” he says. “The Obama administration needs to signal whether we are going to move toward zero-emission energy systems or whether we are going to move forward with last century’s energy systems.”

In 2012, Andrew Weaver, a climate scientist at the University of Victoria in British Columbia, tried to put the concerns about Canadian tar-sands oil into perspective:

He and a student calculated what would happen to global temperatures if the tar sands were fully developed. The proven reserves — those that could be developed with known technologies — make up roughly 11% of the global total for oil, and Weaver’s model suggested that full development would boost the average global temperature by just 0.03 degrees Celsius. Weaver says that the initial focus should be on coal, which he found would have 30 times the climate impact of oil if the world burned all proven coal reserves.

Still, the fact is that a vibrant climate movement has grown up around the anti-Keystone fight.

Many researchers who have sided with environmentalists on Keystone acknowledge that the decision is mostly symbolic. But in the absence of other action, says Harvard’s Keith, it is important to get people involved and to send industry a message that the world is moving towards cleaner fuels, not dirtier ones.

Says David Victor, a climate-policy expert at the University of California at San Diego, “As a serious strategy for dealing with climate, blocking Keystone is a waste of time. But as a strategy for arousing passion, it is dynamite.”

Our David Roberts made a similar point last year:

There aren’t many easy or obvious ways to make viscerally affecting stories out of the models and statistics of climate science. “Cap-and-trade” certainly stirred no one’s loins. Activists are now looking around for other stories.

In Keystone XL, they found one. Through whatever combination of luck, happenstance, and tenacity, this one worked. It’s an entrée to the climate fight that is immediate enough, vivid enough, to spark the popular imagination. …

From the perspective of activism and social change, such energy and enthusiasm is to be tended like a precious spark.

Does it make sense to critique the Keystone focus and argue for more attention to other aspects of the climate problem? Or should the critics put up or shut up — stop complaining about anti-Keystone activism until they form their own dynamic anti-coal or pro-carbon-pricing movements?

Jamie Henn of 350.org thinks the Nature article gets the frame all wrong:

Lisa Hymas is senior editor at Grist. You can follow her on Twitter and Google+.

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Is Keystone XL a distraction from more important climate fights?

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