Tag Archives: monterey

ScienceTake | Navigating Air and Water

For flying and swimming creatures obstructions can be something to avoid, or reference points to keep nearby. Excerpt from:  ScienceTake | Navigating Air and Water ; ;Related ArticlesOur Inability To Deal With Climate Change Is Going to Kill the PenguinsThese Maps Show How Many Brutally Hot Days You Will Suffer When You’re OldHardcore Capitalists Warn That Climate Change Is A Big Deal For American Businesses ;

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ScienceTake | Navigating Air and Water

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What You Need to Know About the Coming Jellyfish Apocalypse

Mother Jones

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More than 50 million Americans swim in the oceans every year (there are actual government surveys of such things). So if your summer plans involves stripping down and bathing in the sun and salt water of your dreams, read on, intrepid beach-goer. There’s something gooey and stingy that’s loving warm waters every bit as much as you are (maybe even more), turning those dreams…to nightmares: jellyfish.

Are there more jellyfish now than ever before?

In some places, yes. One recent University of British Columbia study concluded that “jellyï¬&#129;sh populations appear to be increasing in the majority of the world’s coastal ecosystems and seas,” and blamed human activity for these blooms. The areas most affected are the Black Sea and the Mediterranean, says Lucas Brotz, a PhD student and jellyfish expert at University of British Columbia’s Fisheries Center, and co-author of the report.

The influx of jellyfish can cause big problems. In October last year, a gelatinous swarm plugged cooling pipes for one of the world’s largest nuclear reactors, on the Baltic coast in Sweden, shutting it down. A swarm hobbled a coal-fired power plant near Hadera on the Israeli coast in 2011. Millions of bulging, translucent creatures descended on popular Mediterranean beaches in April 2013, freaking out the tourists. Jellyfish expert Lisa-ann Gershwin writes in her 2013 book Stung! that jellyfish caused the collapse of the $350 million Black Sea fishing industry in the 1990s. In 2007, a plague wiped out a salmon farm off Northern Ireland.

A Lion’s Mane, the largest known type of jellyfish, has tentacles that can reach 100 feet in length. Alexander Semenov/REX/AP Photo

North America hasn’t seen as many jellyfish-related problems as Europe, says Brotz. Although some parts of the West Coast—northern California in particular—have seen spikes in jellyfish populations, “they tend to be smaller species that don’t really affect people very much.”

Is climate change to blame for the increase in jellyfish?

While it’s difficult to trace any single jellyfish bloom to climate change—”It’s really tough, there’s a lot of noise in the signal,” Brotz says—warming oceans appear to be playing a role in the emerging pattern. That’s because the warmer the water, the less oxygen it can hold. Unlike other sea life, jellyfish are very good at surviving in these low-oxygen environments, giving them a comparative advantage.

“Warmer water species are going to start to have more and more areas where they can expand their range into,” he says. Scientists have already observed this phenomenon in Australia’s jellyfish. Brotz expects that in the United States, especially on the East Coast, jellyfish will also begin “showing up earlier and sticking around for longer into the fall.”

While jellyfish appear to be really loving global warming, they could also be driving the change, writes Australian scientist Tim Flannery: “Remarkably, jellyfish may have the capacity to accelerate climate change,” he writes. “Jellyfish release carbon-rich feces and mucus (poo and goo) that bacteria prefer to use for respiration,” turning the bacteria into carbon-making factories, accelerating warming. A gelatinous feedback loop.

But scientists are split over the whether global warming is a dominant factor, and are desperate for more comprehensive datasets to fully understand the dynamic. There’s even an interactive website and smart phone apps developed by the Monterey Bay Aquarium Research Institute to encourage citizen scientists to submit their own sightings to help with a global tracking effort.

There are other factors driving population booms, of course, aside from global warming: Over-fishing has also killed off the jellyfish’s natural predators: fish. Pollution and ocean acidification may also be playing their parts in this complex story.

Should swimmers in the United States be worried?

Every year around the world there are an estimated 150 million jellyfish stings, according to recent research. In the United States, jellyfish are blamed for half a million stings in the Chesapeake Bay and up to 200,000 stings in Florida waters.

That sounds like a lot, but a jellyfish lashing in North America is “more the level of a bee sting,” says Brotz. “It’ll be quite painful and might even give you a little bit of scarring temporarily, but unless you have a severe allergy, it’s not going to be too dangerous.”

The most dangerous species of jellyfish—Chironex fleckeri and Irukandji—are found in the waters around Australia and the Philippines. It only takes three minutes for a sting from Chironex fleckeri, a species of box jellyfish, to kill you, with a tentacle laced with some of the world’s deadliest poison. Box jellyfish are outfitted with superior wits and senses to their jellyfish brethren, writes Flannery. For one, they can see: “They are also the only jellyfish with eyes that are quite sophisticated, with retinas and corneas… And they have brains, which are capable of learning, memory, and guiding complex behaviors.” (Shudder.) A single brush of the Irukandji jellyfish—in the box jellyfish family—can cause searing pain and cramps, inducing nausea and vomiting which can continue for 12 hours, and more insidiously, an existential dread: Victims are “gripped with a sense of ‘impending doom’.”

A box jelly fish photographed in aquarium. Daleen Loest/Shutterstock

“As the oceans warm,” Flannery writes, “the tropical box jellyfish and the Irukandjis are likely to extend their ranges.” That’s already the case, with Irukandji spotted in coastal waters from Cape Town to Florida.

Great.

How many people die every year from jellyfish stings?

We don’t know, because deaths can so easily be attributed to other causes, like drowning. But readers filled with terror about sharks chomping down on your leg while you swim should put this in perspective: the death toll from jellyfish is definitely more than from sharks. Sharks kill about eight to 10 people a year. Jellyfish kill at least 50, according to Brotz.

If you get stung, what should you do?

I’m sorry to say, despite everything you’ve heard, peeing on a sting is not going to help. We’ll get to that in a moment. But first, here’s what’s going on when a jellyfish stings you.

A jellyfish has “thousands or millions” of these really fascinating little cells with their own venom sacs that operate “almost like a hypodermic syringe,” says Brotz. “If you come in contact with them, each cell has it’s own little trigger hair. Once the trigger hair gets fired, basically this little harpoon will shoot out of the cell.”

“The more tentacle you come in contact with, the more of these cells, these nematocysts, the more severe the sting is going to be. Even when a tentacle breaks off from a jellyfish these nematocysts are still active.”

Here’s what to do, and what not to do, according to Brotz:

  1. If you find a jellyfish dead and washed up on the beach, don’t touch it because it could still sting you.
  2. Even if you’ve been stung already, you might still have bits of “unfired nematocysts” stuck to you. Don’t rub them; they might sting you further.
  3. Try to pick off any little bits of tentacle that are stuck to you, but avoid using your fingers. Again: they can still release venom. Brotz suggests a pair of tweezers, or even a stick.
  4. “After that it’s best to rinse it with sea water,” says Brotz. “You don’t really want to use freshwater because that can also chemically cause the nematocysts to fire.”
  5. That advice about seawater goes for urine, too.
  6. Vinegar, an acetic acid, has been used for years to prevent box jellyfish stingers from firing. But this remedy has been called into question with new research in Australia that says it could actually increase the venom load in the victim by 50 percent.

If there are too many jellyfish, what about eating them to control their populations?

People do eat jellyfish. It’s quite a common delicacy in parts of Asia, and the jellyfish-as-food business is booming, says Brotz, who estimates the annual global catch to be around one million tons. “I mean, that’s much more than the global catch of say lobsters, or scallops,” he says.

And while jellyfish fisheries are growing around the world to cater for the demand, Brotz warns that eating them won’t necessarily be a solution to overpopulation.

Dried jellyfish being sold in Hong Kong’s Sheung Wan market. Claudio Zaccherini/Shutterstock

Of the twelve types of edible fish, sand jellyfish and cannonball jellyfish are the most popular, and tend to be a “more meaty, a little bit more dense species,” says Brotz. Consumers “really like to have the final product to have a little bit of a crunch to it,” and there’s only a handful of species that can really deliver.

What does it taste like? “It’s this interesting line between crunchy and chewy,” Brotz says. “It sort of reminds me of under-cooked pasta, like al dente pasta, with crunch and chew at the same time. Of course, it depends on what market it’s heading for. Japanese prefer their jellyfish much crunchier than, say, the Chinese do.”

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What You Need to Know About the Coming Jellyfish Apocalypse

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NASA Launching Satellite to Track Carbon

The Orbiting Carbon Observatory-2 is scheduled to lift off Tuesday with the aim of getting better data on how carbon moves into and out of the atmosphere — a key to understanding climate change. Link to original:  NASA Launching Satellite to Track Carbon ; ;Related ArticlesU.S. Catfish Program Could Stymie Pacific Trade Pact, 10 Nations SayCreeping Up on Unsuspecting Shores: The Great Lakes, in a Welcome TurnaroundDot Earth Blog: The Agriculture Secretary Sees a Smart (Phone) Solution to GMO Labeling Fight ;

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NASA Launching Satellite to Track Carbon

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Environmental Agency Approves $511 Million Loan for Tappan Zee Replacement

The loan, which has been criticized by environmental and transportation groups, must still be approved by the Thruway Authority and the Public Authorities Control Board. Original link:  Environmental Agency Approves $511 Million Loan for Tappan Zee Replacement ; ;Related ArticlesLoan Sought for Tappan Zee Work Is FaultedEconomic Scene: Carbon Cuts Now Won’t Stop Climate Change, but Could Limit DamageApp Smart: Navigating National Parks With Light and Rich Digital Guides ;

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Environmental Agency Approves $511 Million Loan for Tappan Zee Replacement

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Dot Earth Blog: Stunning New Video View of Swimming Polar Bears

New video footage reveals polar bears in their watery element. Link:  Dot Earth Blog: Stunning New Video View of Swimming Polar Bears ; ;Related ArticlesDot Earth Blog: Ecology in the Age of Us – Double-Decker River InvadersDot Earth Blog: Celebrating a Reviving River Through Sail and SongAt School, Turning Good Food Into Perfectly Good Compost ;

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Dot Earth Blog: Stunning New Video View of Swimming Polar Bears

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This Is How Much America Spends Putting Out Wildfires

As California burns, the way the feds fight wildfires doesn’t jibe with the reality of climate change. Fire crews burn out an area at the Shirley Fire near Lake Isabella, Calif., on Sunday. Stuart Palley/ZUMA The central California wildfire that yesterday destroyed three homes and forced hundreds of evacuations is just the latest blaze to strain the nation’s overburdened federal firefighting system. According to the latest official update, by Monday evening the Shirley Fire had consumed 2,600 acres near Sequoia National Forest and cost over $4 million, as more than 1,000 firefighters scrambled to contain it. This year, in the midst of severe drought across the West, top wildfire managers in Washington knew they were going to break the bank, even before the fire season had really begun. In early May, officials at the US Department of Agriculture (which oversees the Forest Service) and the Department of Interior announced that wildfire-fighting costs this summer are projected to run roughly $400 million over budget. Since then, wildfires on federal land have burned at least half a million acres, and the Forest Service has made plans to beef up its force of over 100 aircraft and 10,000 firefighters in preparation for what it said in a statement “is shaping up to be a catastrophic fire season.” But the real catastrophe has been years in the making: Federal fire records and budget data show that the US wildfire response system is chronically and severely underfunded, even as fires—especially the biggest “mega-fires”—grow larger and more expensive. In other words, the federal government is not keeping pace with America’s rapidly evolving wildfire landscape. This year’s projected budget shortfall is actually par for the course; in fact, since 2002, the US has overspent its wildfire fighting budget every year except one—in three of those years by nearly a billion dollars. Tim McDonnell That sets up a vicious cycle: Excess money spent on fighting fires has to be pulled from other vital programs, including some of the very activities—clearing brush and conducting controlled burns—that are designed to keep the most destructive fires from occurring. Jim Douglas, director of Interior’s Office of Wildland Fire, says both his agency and the Forest Service (which together are responsible for preparing for and fighting fires on federal land) are perpetually robbing Peter to pay Paul—and climate change is only making matters worse. “It’s pretty clear that the physical environment in which we work is changing,” he says. “The underlying problem is that fire costs are increasing more often than not.” Douglas blames the rising costs on a toxic combination of urban development (“We’re spending a lot more time protecting communities and subdivisions than we did a generation ago,” he says), and a greater abundance of super-dry fuel, which leads to longer fire seasons and bigger fires. Since 1985, the size of an average fire on federal land has quadrupled, according to records kept by the National Interagency Fire Center. The total acres burned nationwide in an average year jumped from 2.7 million over the period 1984-1993, to 7.3 million in 2004-13. And of the top 10 biggest burn years on record, nine have happened since 2000. Tim McDonnell Meanwhile, dry conditions are also lengthening the season in which large fires occur, according to analysis by fire ecologist Anthony Westerling of the University of California-Merced. In 2006, Westerling counted instances of fires greater than 1,000 acres in Western states; the study, published in Science, found that “large wildfire activity increased suddenly and markedly in the mid-1980s.” Updated data provided by Westerling to Climate Desk shows that trend continued in the last decade: Tim McDonnell And the longer seasons mean even higher costs, explains Interior’s Douglas. That’s because seasonal firefighters must be kept on the payroll and seasonal facilities must be kept open longer. Environmental change is complicating the work of fire managers who already had their work cut out for them restoring forests from the decades-long practice of suppressing all fires, which led to an unhealthy buildup of fuel that can turn a small fire into a mega-fire. “Until the ’80s or so, it was easy to explain fires as consequence of fuel accumulation,” says Wally Covington, director of the Ecological Restoration Institute at Northern Arizona University. “Now, piled on that are the effects of climate change. We are seeing larger fires and more of them.” Scientists like Covington are increasingly confident about the link between global warming and wildfires. In March, the UN’s Intergovernmental Panel on Climate Change reported that more and bigger wildfires are expected to be among the most severe consequences of climate change in North America. And a report prepared by the Forest Service for last month’s National Climate Assessment predicts a doubling of burned area across the US by mid-century. Driving those trends are more sustained droughts that leave forests bone-dry and higher temperatures that melt snowpack earlier in the year. Both of those factors are at play this year, especially in the fire-prone West. California’s snowpack was at record lows this winter, and Covington says forest conditions across the region “are dominated by drought.” Tim McDonnell While climate conditions and urban development drive up the average cost of putting out a fire, Interior’s Douglas says his agency is still able to extinguish the majority of fires while they’re relatively small. The biggest concern, from a budgetary perspective, is the biggest 0.5 percent of fires, which according to Interior account for about 30 percent of total firefighting costs. While the average per-fire cost is now around $30,000, a handful of massive fires cost orders of magnitude more: In 2012 several dozen fires pushed into the multi-million-dollar range, with the year’s most expensive, the Chips Fire in California, reaching the stratospheric height of $53 million. Tim McDonnell All it takes is a few multimillion-dollar fires to drain the budget, Douglas says. Traditionally, the firefighting budget set by Congress is based on the rolling 10-year average of expenses, so that in theory the budget tracks changes in actual costs. But in practice, Douglas says, costs are rising too quickly for the budget to keep up, especially as the worst fires get worse. The result is the chronic shortfall shown in the first chart above. In 2009, Congress attempted to patch the hole with the FLAME Act, which created a new reservoir of firefighting funds meant to “fully fund anticipated wildland fire suppression requirements in advance of fire season and prevent future borrowing” from other programs like forest management and land acquisition. Given that boost, the budget jumped into surplus the following year; but it soon dropped back into deep deficit during 2012′s devastating fire season, the third-worst in US history. Last year, the situation was exacerbated by the budget sequester, which cut the Forest Service budget by 7.5 percent, eliminated 500 firefighting jobs, and left western communities scrambling to pick up the tab. Sen. Ron Wyden, the Oregon Democrat whose state is the second most-burned in the nation (see map above), is now pushing a new bill that he says has support from western Republicans (and, for what it’s worth, the National Rifle Association) to create an emergency fund for tackling the biggest fires that would exist outside the normal USDA/Interior budget, similar to the way FEMA currently pays for hurricane recovery. The bill is similar to a proposal by the White House, which would free up over a billion dollars in additional emergency firefighting funds. The idea, Wyden says, is to keep officials from having to crack open the fire prevention piggy bank every time a bad fire season hits, a practice that ultimately drives up costs across the board. “The way Washington, DC, has fought fire in the last decade is bizarre even by Beltway standards,” Wyden says. “The bureaucracy steps in and takes a big chunk of money from the already-short prevention fund and uses it to put out the inferno, and then the problem gets worse because the prevention fund has been plundered.” Indeed, firefighting expenditures have consistently outpaced fire preparation expenditures, even as experts like Covington and Douglas insist that, like the adage says, an ounce of prevention is worth a pound of cure. Since 2002, the average dollar spent on firefighting has been matched by only 80 cents in preparatory spending on things like clearing away hazardous fuels and putting firefighting resources in place: Tim McDonnell Wyden’s bill, which he calls “arguably one of the first bipartisan efforts that could make a real dent in climate change,” is still in committee, and the House version has already taken heat from fiscal conservatives like Paul Ryan (R-Wisc.). In any case, it wouldn’t take effect until next year. But Covington argues that the government needs to approach wildfires as natural disasters on par with hurricanes and earthquakes, and that we should plan for a future that is much more severe than the past. “Earlier in the century, if they saw what’s been going on since the ’90s, it’s just inconceivable,” he says. “It alarms me that people don’t realize how much is being lost.” From:  This Is How Much America Spends Putting Out Wildfires ; ;Related ArticlesWhy David Brat is Completely Wrong About Climate ScienceHurricane Cristina Just Set A Scary RecordThis Is Why You Have No Business Challenging Scientific Experts ;

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This Is How Much America Spends Putting Out Wildfires

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Underground water reservoir with 3X as much water as Earth’s oceans found 700km deep in Earth’s crust

And this is just under the United States. There could be even more water trapped deep underground elsewhere on the planet. See the original article here –  Underground water reservoir with 3X as much water as Earth’s oceans found 700km deep in Earth’s crust ; ;Related ArticlesWhy David Brat is Completely Wrong About Climate ScienceNo. 1 pesticide killing honeybeesHurricane Cristina Just Set A Scary Record ;

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Underground water reservoir with 3X as much water as Earth’s oceans found 700km deep in Earth’s crust

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Recreating Wilderness in Spain

A reserve in the country’s west seeks to transform unused farmland into the type of wild area that disappeared from Europe centuries ago. More here:   Recreating Wilderness in Spain ; ;Related ArticlesDot Earth Blog: Recording the Polar Bear’s View of its Changing Arctic EnvironmentWhat the Future Holds: How Obama’s Climate Goals Will Play in Silicon ValleyDot Earth Blog: Indian Point’s Tritium Problem and the N.R.C.’s Regulatory Problem ;

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Recreating Wilderness in Spain

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Dot Earth Blog: Indian Point’s Tritium Problem and the N.R.C.’s Regulatory Problem

A spike in levels of tritium in groundwater near the Indian Point nuclear power plant raises questions about regulatory oversight. View the original here: Dot Earth Blog: Indian Point’s Tritium Problem and the N.R.C.’s Regulatory Problem Related ArticlesIndian Point’s Tritium Problem and the N.R.C.’s Regulatory ProblemWorld Briefing: Chile: Patagonia Dams RejectedFuture Fossils: Plastic Stone

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Dot Earth Blog: Indian Point’s Tritium Problem and the N.R.C.’s Regulatory Problem

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Hurricane Cristina Just Set A Scary Record

For the first time on record, the eastern Pacific basin has now had two Category 4 hurricanes before July. Hurricane Cristina off the coast of Mexico. NASA/Wikimedia Commons Two weeks ago in the eastern Pacific hurricane basin, we saw Category 4 Hurricane Amanda, which was too strong, too early. Amanda was the “strongest May hurricane on record in the eastern Pacific basin during the satellite era,” noted the National Hurricane Center. And right now, the basin is host to Category 4 Hurricane Cristina, which follows on Amanda’s record with a new one. The storm just put on an “extraordinary” burst of intensification in the last 24 hours, rocketing from Category 1 to Category 4 strength, with maximum sustaind wind speeds of 150 miles per hour. And now that it has gotten there, notes the National Hurricane Center, we have another new record: Cristina is the earliest 2nd major hurricane formation in the ern Pacific (reliable records since 1971) by 13 days, old record Darby 2010 — Natl Hurricane Ctr (@NHC_Pacific) June 12, 2014 Adds encyclopedic weather blogger Jeff Masters: This year is also the first time there have been two Category 4 hurricanes before July 1 in the Eastern Pacific. Prior to Cristina, the earliest second Category 4 hurricane was Hurricane Elida in 1984, which reached that threshold on July 1. As I’ve noted before, the eastern Pacific basin tends to be very active in El Niño years. We are not officially in an El Niño right now, but the forecast for one developing this summer is now 70 percent. In this case, maybe the eastern Pacific is ahead of the forecasters in responding to the state of the ocean and atmosphere. As of now, Hurricane Cristina is expected to travel westward, harmlessly, out to sea. Original article: Hurricane Cristina Just Set A Scary Record Related ArticlesWhy David Brat is Completely Wrong About Climate ScienceThis Is Why You Have No Business Challenging Scientific Experts9 Things You Need To Know About Obama’s New Climate Rules

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Hurricane Cristina Just Set A Scary Record

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