Tag Archives: extinction

Daily Action to Celebate Earth Week: Restore Nature

The week leading up to Earth Day is a great time to focus attention on the individual steps we can each take to help protect the planet and ourselves. That’s why, throughout Earth Week (April 17 – April 23) we’ll be highlighting a daily action that can make a difference.

First up: Restore Nature

Nature depends on wilderness, wetlands, forests, prairies and even deserts to sustain the animals, plants and resources ecosystems need to thrive. But the natural world is quickly disappearing. Since the 1700s, the U.S. has lost over 50 percent of its wetlands.

Twenty-two states have lost at least 50 percent of their original wetlands, reports Environmental Concern, Inc., while in seven states over 80 percent of original wetlands have disappeared. The story is similarly grim when it comes to the loss of forests.

The United Nations Environment Programme reports that 13 million hectares of forests, an area equivalent to the size of Greece, are cut down around the world every year. And though over a quarter of the world was once covered by grasslands, much of that has now been turned into farms, energy development and even suburbs, says National Geographic.

Though you may not be able to plant a tract of prairie or singlehandedly restore a marsh, you can do the following to make a difference:

* Plant a tree in your own yard. Can this make a difference? I think of the neighborhood I grew up in as proof that it can. My neighborhood started off as a blank subdivision that had been clearcut so that every house could be easilybuilt on a small, treeless tract. One of the first things my parents and others did when they moved in was plant treesin their front yard as well as in the back. Today, that neighborhood is flush with mature trees that provide shade in the summer and wonderful habitat for all kinds of migrating birds.

* Fill your landscapewith native plants. Whether or not you plant a tree, you will probably have other flowers and bushes in your yard. As much as possible, skip the exotic species in favor of native plants that help restore nature’s balance to your community. Your local county extension agent will be able to tell you what’s native to your region, as well as what will thrive in your own yard given your access to sunlight and water.

* Get together with your neighbors to restore natural spaces. Convene a meeting with your city planning officials and other concerned citizens to identify parts of your neighborhood that you can replant. Connect with the Boy Scouts to stencil storm drains with messages that warn people that the drains connect to their watershed, so they shouldn’t dump oil, paint or other contaminants. Organize a stream clean-up.

* Stopinvasive species.Non-native plants and animals threaten native wildlife and ecosystems and wreak ecological havoc, says the National Wildlife Federation (NWF), which pushes many plants and animals to the brink of extinction. Next to habitat loss and degradation, invasive species are the biggest threat to biodiversity. They can also cost the U.S. economy billions of dollars because they can clog water pipes, decimate fisheries and propagate disease. NWF recommends setting up monitoring systems to detect infestations of these unwanted creatures, and, at home, eradicating invasives in favor of planting and maintaining a natural garden.

* Be water wise. Think about water in two ways: how you use it and how you keep it clean. We waste an enormous amount of water by letting faucets run; by watering grass; by ignoring leaks; and by running appliances like dishwashers and clothes washers when they’re somewhat empty. Save water in your yard by planting more drought-tolerant plants, tightening faucets, replacing toilets and shower heads with more water-wise models and running appliances when they’re full. Protect water quality by minimizing use of fertilizers, insecticides and other pollutants that can run off into streams, rivers and lakes. Buy organically grown food to help reduce agricultural water pollution. And stop using personal care products that contain plastic microbeads, tiny pieces of toxic plastic that wash down the drain and into our waterways.

What other ideas do you have for restoring Nature on Earth Day? We’d love to hear what you plan to do.

Disclaimer: The views expressed above are solely those of the author and may not reflect those of Care2, Inc., its employees or advertisers.

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Daily Action to Celebate Earth Week: Restore Nature

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We’re killing off all the animals and they are making it really difficult for us to save them

We’re killing off all the animals and they are making it really difficult for us to save them

By on 25 Aug 2015commentsShare

Take note, parents: The next time you take your kids to the zoo, if you really want to give them the full experience, be sure to tell them that behind all those cages full of depressed super happy animals, zoos have vials upon vials of animal sperm.

That’s right — vials of frozen elephant sperm might not be as exciting as Dumbo himself, but they’re just as important to wildlife conservation. As Elizabeth Kolbert, author of The Sixth Extinction, discussed in her interview with Grist last year, scientists are hoping to use all that frozen goo to keep endangered species alive through artificial insemination. But as Wired reports, that’s easier said than done. Here’s the … rub (sorry):

Scientists, first off, simply don’t know how reproduction works for the vast majority of species. “We had to go back first to basic reproductive biology, because, of course, a cheetah is not a dairy cow,” says Pierre Comizzoli, a biologist at the Smithsonian Conservation Biology Institute.

Artificial insemination for cows has been successful because the livestock industry has poured millions of dollars and decades of research into studying them. But that’s just one species worth of research. With 6,264 endangered or critically endangered species on the IUCN Red List, scientists are spread thin trying to tease out the intricacies of their reproductive systems.

Giant panda sperm, for example, is quite “hardy,” Wired reports, while cheetah sperm is a bit more hit-or-miss. And even with good cheetah sperm, successful insemination isn’t always a sure thing because the females tend to have irregular hormone cycles. Cheetahs: They’re just like us!

The actual process of freezing all this animal goo, as Wired describes it, is pretty fascinating:

Once scientists have collected a semen sample (a logistically complex procedure that may involve anesthetizing the animal), the sperm needs to be frozen and, when the time comes, thawed. “It’s asking a lot of these cells,” says Budhan Pukazhenthi, a Smithsonian scientist who works with ungulates like zebras, antelopes, and deer. Scientists basically pickle the sperm cells with a cocktail of antifreeze chemicals, which involves a delicate dance between lowering the temperature of the sperm and introducing the solution to keep sharp ice crystals from forming within the cell. Reanimating the sample involves reversing the process while controlling for temperature and thawing rates. “It’s almost like cooking,” Pukazhenthi says.

So go forth, parents, babysitters, aunts, uncles, and anyone else heading to the zoo this weekend with youngsters in tow. Tell your little companions about the anesthetized animals, the sperm pickled in antifreeze, the artificial cheetah hormones, and the difference between elephant and panda jizz. With any luck, you’ll inspire a whole new generation of scientists who want the difficult, weird job of saving endangered species.

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Why Frozen Sperm Can’t Save Earth’s Imperiled Species—Yet

, Wired.

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A Grist Special Series

Oceans 15


How to feed the world, with a little kelp from our friends (the oceans)Paul Dobbins’ farm needs no pesticides, fertilizer, land, or water — we just have to learn to love seaweed.


This surfer is committed to saving sharks — even though he lost his leg to one of themMike Coots lost his leg in a shark attack. Then he joined the group Shark Attack Survivors for Shark Conservation, and started fighting to save SHARKS from US.


This scuba diver wants everyone — black, white, or brown — to feel at home in the oceanKramer Wimberley knows what it’s like to feel unwelcome in the water. As a dive instructor and ocean-lover, he tries to make sure no one else does.


This chef built her reputation on seafood. How’s she feeling about the ocean now?Seattle chef Renee Erickson weighs in on the world’s changing waters, and how they might change her menu.


Oceans 15We’re tired of talking about oceans like they’re just a big, wet thing somewhere out there. Let’s make it personal.

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We’re killing off all the animals and they are making it really difficult for us to save them

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Climate change could wipe out the internet’s favorite animal

Spoiler alert!

Climate change could wipe out the internet’s favorite animal

By on 17 Aug 2015 4:06 pmcommentsShare

Internet dwellers, unite! The red panda, lord of all things cute, is in danger, and only we can help it.

That’s right — the smiling, red-faced stuffed animal that puts your most adorable kids and kittens to shame — is not doing so great these days, thanks to an expanding human population and all the deforestation, disease, and testy domestic dogs that come with it, The New York Times reports. Oh, and SPOILER ALERT — climate change, too.

If you’re unfamiliar with the red panda, this is all you really need to know:

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It’s a (very) distant relative of the more familiar raccoon. The two parted ways on the old evolutionary road about 26 million years ago, and boy did our trash-loving night crawlers get the short end of the genetic stick:

Steve

There are currently about 10,000 wild red pandas living in the mountains between China and Nepal, and about 500 being raised in zoos around the world. And while plenty of dangers face what the 19th century French zoologist Frédéric Cuvier once called “quite the most handsome mammal in existence,” climate change could be the final nail in the panda’s cute little two-foot-long coffin.

Here’s how Elizabeth Freeman, a conservation biologist at George Mason University, explained it to The Times:

“I think down the road what may actually do them in is climate change,” Dr. Freeman said. “Because they are in such a small niche in the Himalayas, and as climate change warms that area and moves that population higher in elevation, they’re going to lose habitat probably faster than they can accommodate to climate change.”

She added, “I see them as being a critical indicator species for the health of the Himalayan ecosystem, probably more so than giant pandas.”

It’s important to note that the red panda is also a keystone species in the listicle and meme ecosystem that has come to define online animal pic culture, and it’s unclear what would happen if red pandas went extinct. Kittens could become the dominate species, sure, but puppies seem like an equally strong contender. And then, of course, there’s the possibility of a non-native species getting a foothold. People could start to think that centipedes are cute, and then what? Is that the kind of world we want to live in? Is that the kind of world we want our children to live in? Addressing climate change is now more important than ever; we have to do something — if not for the children, then for this li’l guy:

BrunswykSource:
Red Pandas Are Adorable and in Trouble

, The New York Times.

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A Grist Special Series

Oceans 15


How much plastic is in our oceans? Ask the woman trying to clean it upCarolynn Box, environmental program director of 5 Gyres, talks about what it’s like to sail across the ocean, pulling up plastic in the middle of nowhere.


How catching big waves helped turn this pro surfer into a conservationistRamon Navarro first came to the sea with his fisherman rather, found his own place on it as a surfer, and now fights to protect the coastline he loves.


What seafood is OK to eat, anyway? Ask an expertWhen it comes to sustainable seafood, you could say director of Seafood Watch Jennifer Dianto Kemmerly is the ultimate arbiter of taste.

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Climate change could wipe out the internet’s favorite animal

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Extinction Is Happening Every Day

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Extinction Is Happening Every Day

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Feral cats are literally eating all of Australia’s wildlife

Feral cats are literally eating all of Australia’s wildlife

By on 13 Apr 2015commentsShare

Australia wants its cats dead. But not because it’s a nation of fanatical dog people — rather, the country’s enormous feral cat population now constitutes a major threat to its biodiversity. To save the country’s native wildlife, the cats need to go.

Due to hotter days, longer dry periods, and increasingly intense bush fires caused by climate change, Australia’s biodiversity is diminishing. Despite being one of the world’s 17 “megadiverse” countries, Australia has not done a bang-up job of protecting its wildlife. As mammalian extinction rates go, Australia’s is pretty dang high: Twenty-one percent of Australian native land mammals are threatened.

But, shockingly, climate change is actually not the No. 1 enemy of koalas and kangaroos: Feral cats are the “single biggest threat” to protecting Australia’s wildlife, according to a new piece from VICE News. There are about 20 million of these little cutthroat barbarians pawing, nuzzling, and murdering (in equal measure) their way across the continent, eating three to 20 animals each day — which adds up to a loss of 80 million native animals per week.

So, in a cruel but necessary gesture to save the country’s wildlife, the Australian government has pledged $2 million to slow their biodiversity loss by 2020 by killing as many feral cats as possible. Eliminating feral cat colonies altogether won’t be possible because they reproduce at high rates and are difficult to catch, but dammit, they’re going to keep trying. Here’s more from Vice:

For now, poisoned baits are the weapon of choice for population control. The largest programs for this method use aircraft to scatter baits across Australia’s vast outback. The aircraft can drop upwards of 60,000 baits across areas of over 1,000 square kilometers.

Until a stronger solution is found, endangered animals will have to be kept alive by isolating them from the vast swathes of the country where the cats roam unabated.

An entire continent terrorized by herds of meaner, angrier house cats sounds like the plot of a David Lynch movie, but this is real life. Who knew Miss Fluffs had it in her?

Source:
One of the World’s Biggest Extinction Crises Is Being Caused by Cats

, VICE News.

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Feral cats are literally eating all of Australia’s wildlife

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The Most Beautiful Animal You’ll Never See

Mother Jones

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This story first appeared on the TomDispatch website.

Maybe baby steps will help, but the world needs a lot more than either the United States or China is offering to combat the illegal traffic in wildlife, a nearly $20-billion-a-year business that adds up to a global war against nature. As the headlines tell us, the trade has pushed various rhinoceros species to the point of extinction and motivated poachers to kill more than 100,000 elephants since 2010.

Last month China announced that it would ban ivory imports for a year, while it “evaluates” the effectiveness of the ban in reducing internal demand for ivory carvings on the current slaughter of approximately 100 African elephants per day. The promise, however, rings hollow following a report in November (hotly denied by China) that Chinese diplomats used President Xi Jinping’s presidential plane to smuggle thousands of pounds of poached elephant tusks out of Tanzania.

Meanwhile, the Obama administration has launched its own well-meaning but distinctly inadequate initiative to curb the trade. Even if you missed the roll-out of that policy, you probably know that current trends are leading us toward a planetary animal dystopia, a most un-Disneyesque world in which the great forests and savannas of the planet will bid farewell to the species earlier generations referred to as their “royalty.” No more King of the Jungle, while Dorothy’s “Lions and tigers and bears, oh my!” will truly be over the rainbow. And that’s just for starters.

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The Most Beautiful Animal You’ll Never See

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As Trains Move Oil Bonanza, Delays Mount for Other Goods and Passengers

Rail lines now move more than a million barrels of oil a day, much of it from the Bakken field in North Dakota and Montana and from the oil sands of Canada. Read original article:   As Trains Move Oil Bonanza, Delays Mount for Other Goods and Passengers ; ; ;

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As Trains Move Oil Bonanza, Delays Mount for Other Goods and Passengers

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No, of course climate change won’t make redheads go extinct

Gingers are here to stay

No, of course climate change won’t make redheads go extinct

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The British media landscape is lighting up with dreadful news for our most fair-skinned friends. If the Independent, Telegraph, Daily Mail, MirrorWeather Network, Huffington Post, and other outlets are to believed, climate change threatens to send red-haired folks into extinction. Extinction!

Fortunately for redheads everywhere, and for everybody who loves them, the news is less credible than a hair product manufacturer’s claim that its dyes won’t fade.

The news coverage is based on interviews by a Daily Record reporter with an anonymous source and with an official at a company that investigates customers’ genetic histories. The newspaper’s claims are based on four assumptions: (1) A single gene mutation codes for red hair and fair skin. (2) Gene mutation evolved to help Europeans soak up more sun, which is needed to produce more vitamin D in cloudy environments. (3) As the climate changes, the world will see fewer clouds. (4) As the clouds disappear, so too will the genes that helped humans adapt to cloudy environments — and the redheads who carry those genes.

But it turns out those four assumptions are either questionable, flat-out wrong, or appear to have been the result of misquotations.

Let’s start with the first claim.

“Although geneticists tend to discover individual genes that play a role in hair color and texture, often many genes play a role,” Rick Potts, a paleoanthropologist who leads the Smithsonian’s Human Origins Program, told Grist. “So the matter may not be as simple as the decrease in a single recessive gene.”

“Physical traits like hair color can be susceptible to what is called ‘positive assortative mating’ — a complex phrase for physical attraction to those potential mates with similar features. Although it’s interesting to discuss why a particular variation, like blond hair or red hair, may have initially spread, there is almost always an element of like-attracted-to-like that may be even more important in retaining a trait in the population,” Potts said.

Now on to assumption No. 2. Scientists at the University of California at San Francisco recently published research that calls into question the long-held assumption that fair skin evolved in humans as they marched out of Africa as a means of increasing vitamin D production. “Recent studies show that dark-skinned humans make vitamin D after sun exposure as efficiently as lightly-pigmented humans,” UCSF dermatology professor Peter Elias said last month. “Osteoporosis, which can be a sign of vitamin D deficiency, is less common, rather than more common, in darkly pigmented humans.”

Third, there is considerable debate among climate scientists as to what role global warming will play in the formation of clouds.

Fourth, perhaps most importantly, the news coverage assumes, incorrectly, that modern humanity is evolving according to the kinds of environmental pressures that affected our ancient forebears. These days, with vitamin D tablets, sunscreen, roofs, and sombreros readily available, redheads and non-redheads are more or less equally likely to survive, find mates, and have healthy babies that go on to repeat the process.

Oh, and if there’s still any doubt in your mind as to whether reports of impending annihilation of redheads are utter bollocks, here’s the final coup de grâce. The Daily Record‘s sole quoted source was Alistair Moffat, managing director of the company ScotlandsDNA. When we contacted ScotlandsDNA, marketing manager Helen Moffat told us, “Alistair was misquoted in the original interview. We do not have a view on this.”


Source
Climate change could make red hair a thing of the past if Scotland gets sunnier, Daily Record

John Upton is a science fan and green news boffin who tweets, posts articles to Facebook, and blogs about ecology. He welcomes reader questions, tips, and incoherent rants: johnupton@gmail.com.

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No, of course climate change won’t make redheads go extinct

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The Big Melt Accelerates

With every day, it seems, comes new evidence that the thawing of the world’s glaciers and the ice sheets of Greenland and Antarctica is accelerating. Originally posted here –  The Big Melt Accelerates ; ;Related ArticlesBillionaire Democrat Sets Eye on Senate RacesFire Season Starts Early, and FiercelyOutlasting Dynasties, Now Emerging From Soot ;

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The Big Melt Accelerates

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These 5 Animals Are About To Become Extinct

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These 5 Animals Are About To Become Extinct

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