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quarta-feira, 30 de julho de 2014

ECOSYSTEMS SERVICES: VERY DIFFICULT FOR POLITICIANS' PERCEPTION AND IMPOSSIBLY UNDERSTANDABLE TO "WALL STREET"

Pricing the Priceless: Ecosystem Services Science at USGS

Reproduced from

[...]

Nature, Inc.

So what other kinds of products and services do ecosystems provide people? There are obvious ones, such as wild fish and game for food, minerals like rare earth elements and copper, fuels like oil and gas, and fresh water for agriculture and drinking. But there are less apparent, yet still extremely important services that ecosystems provide humanity.

Coastal wetlands, for example, often serve as shock absorbers for storm surge created when ocean storms come ashore. Pollinators, such as bees –both native and honeybees –and bats, perform the lion’s share of pollinating fruit trees and other agricultural crops. River deltas like Louisiana’s Atchafalaya Basin provide essential habitat for the seafood that underpins billion-dollar industries.

These products and services are essential not only to the ecosystems that provide them, but also to the people and societies built on them. Factoring their value into cost-benefit analyses is an important part of smart planning. But that raises a new question—how to assign value to ecosystem services?

[Read the article on the link above]


terça-feira, 29 de julho de 2014

OIL SPREADING IN AMAZON MAY BECOME SERIOUS ENVIRONMENTAL PROBLEM!

Amazon oil spill has killed tons of fish, sickened native people



Read complete article by accessing the link:

http://www.environmentalhealthnews.org/ehs/news/2014/jul/amazon-oil-spill

This rupture of Peru’s 39-year-old northern crude oil pipeline has terrified Kukama villagers along the Marañón River [a tributary of Amazon river].  People’s complaints of nausea and skin rashes are aggravated by nervousness about eating the fish, concerns about their lost income and fears that oil will spread throughout the tropical forest and lakes when seasonal flooding begins in November. Cuninico, a village of wooden, stilt-raised, palm-thatched houses, is home to about 130 families but several hundred families in other communities also fish nearby.




sábado, 26 de julho de 2014

OLIVE TREES DESTROYED TO FORCE PALESTINIANS TO LEAVE. PUNISHMENT AGAINST...NATURE???

Since 1967, Israeli soldiers and 'settlers' in occupied Palestine have destroyed 800,000 olive trees in an attempt to force Palestinian farmers from their land, writes Megan Perry. 'Our response to this injustice will never be with violence, and we will never give up and leave.'


Olive trees in the Holy Land are a renowned symbol of peace. Known as blessed trees, they are a lifeline for Palestinian subsistence farmers, providing for around 100,000 families.

But more than this, the olive trees provide a tangible link between Palestinians, their ancestors and their land.

Sadly, however, many of these trees are being violently destroyed as a form of collective punishment, in an attempt to force Palestinians from their land. Despite this desecration many Palestinian farmers are using farming as a form of resistance to fight for peace.

Since 1967, the Israeli military and illegal settlers have destroyed at least 800,000 olive trees. Some of these trees are nearly 1,000 years old - they are irreplaceable.
[...]

Soldiers or settlers arrive with little warning and bulldoze or burn the trees, sometimes using chemicals. Anna Baltzer, a Jewish American activist, witnessed this destruction, and describes how, by the time she arrived,

"The owners were hysterical. They kept screaming 'hamil!' as the ancient trees were ripped from the ground by the monstrous machines. 'Hamil' is a word that can be used to describe trees during the time that they bear fruit; it means 'pregnant'."

[...]


quarta-feira, 23 de julho de 2014

"BEEF FOOTPRINT" THREATENS THE SURVIVAL OF MANY HUMANS

Beef's greater environment burden

By Matt McGrath

[Reproduced from BBC News]


A new study suggests that the production of beef is around 10 times more damaging to the environment than any other form of livestock.

Scientists measured the environment inputs required to produce the main US sources of protein.

Beef cattle need 28 times more land and 11 times more irrigation water than pork, poultry, eggs or dairy.

The research has been published in the Proceedings of the National Academy of Sciences.

While it has long been known that beef has a greater environmental impact than other meats, the authors of this paper say theirs is is the first to quantify the scale in a comparative way.

Beef footprint

The researchers developed a uniform methodology that they were able to apply to all five livestock categories and to four measures of environmental performance.

"We have a sharp view of the comparative impact that beef, pork, poultry, dairy and eggs have in terms of land and water use, reactive nitrogen discharge, and greenhouse gas emissions," lead author Prof Gidon Eshel, from Bard College in New York, told BBC News.

"The uniformity and expansive scope is novel, unique, and important," he said.

The scientists used data from from 2000-2010 from the US department of agriculture to calculate the amount of resources required for all the feed consumed by edible livestock.

They then worked out the amount of hay, silage and concentrates such as soybeans required by the different species to put on a kilo of weight.

They also include greenhouse gas emissions not just from the production of feed for animals but from their digestion and manure.

As ruminants, cattle can survive on a wide variety of plants but they have a very low energy conversion efficiency from what they eat.

As a result, beef comes out clearly as the food animal with the biggest environmental impact.

As well as the effects on land and water, cattle release five times more greenhouse gas and consume six times more nitrogen than eggs or poultry.

Cutting down on beef can have a big environmental impact they say. But the same is not true for all livestock.

"One can reasonably be an environmentally mindful eater, designing one's diet with its environmental impact in mind, while not resorting to exclusive reliance on plant food sources," said Prof Eshel.

"In fact, eliminating beef, and replacing it with relatively efficiency animal-based alternatives such as eggs, can achieve an environmental improvement comparable to switching to plant food source."

Other researchers say the conclusions of the new study are applicable in Europe, even though the work is based on US data.

"The overall environmental footprint of beef is particularly large because it combines a low production efficiency with very high volume," said Prof Mark Sutton, from the UK's Centre for Ecology and Hydrology.

"The result is that the researchers estimate that over 60% of the environmental burden of livestock in the US results from beef. Although the exact numbers will be different for Europe (expecting a larger role of dairy), the overall message will be similar: Cattle dominate the livestock footprint of both Europe and US."

Follow Matt on Twitter @mattmcgrathbbc.

BBC © 2014

quarta-feira, 16 de julho de 2014

THE MAN WHO PLANTED A FOREST BIGGER THAN CENTRAL PARK




Reproduced from:


The Molai Forest in Assam, India is unusual for several reasons. The 1,360 acre forest is on a sandbar, for starters. The sandbar is the world's largest river island, Majuli. And, oh yeah, it was planted entirely by one hyper-dedicated, beautiful maniac named Jadav Payeng.

Payeng planted and tended trees for over 30 years until they accumulated into the Molai Forest. Imagine if Ryan Gosling's character in The Notebook cared about the environment instead of Rachel McAdams and devoted years of his life to preventing the erosion of his home island instead of sweating over that stupid farmhouse. He's like the Dos Equis "Most Interesting Man In The World" except instead of being a dilettante lad rag fantasy advertisement, he's just a real guy who planted a banaynay amount of trees to protect his family and the environment.

Payeng planted so many trees that Bengal tigers saw them and were like "Ok, we'll live here now." Elephants, deer, vultures and rhinoceroses all fuck with his forest. And Payeng wasn't casually strewing seeds around like Johnny Appleseed. He made sure to plant a diverse roster of trees, and there are over a thousand species, including 300 hectares of bamboo.

domingo, 13 de julho de 2014

MICROPLASTIC WASTE IN OCEANS: OF COURSE, THIS WOULD HAPPEN!!!


[Reproduced from The Independent, London]

Pollution of the oceans by tiny pieces of plastic debris is now so widespread that only radical action to eliminate the waste at source can limit further damage to marine wildlife, according to scientists.

Microplastics, which can range in size from being invisible to the naked eye to just a few millimetres in diameter, are now turning up in all the world's major oceans including the Arctic and Antarctic, and it is no longer feasible to think it may be possible to simply 'clear up the mess', researchers add.

Most people are aware of the visible plastic pollution such as discarded bottles and other waste items washed up on beaches, but it is the invisible plastics that are likely to pose the bigger risks to animals and plants, say marine scientists Karen Lavender Law and Richard Thompson. And they warn that the problems will only get worse unless drastic action is taken to curb the sale of disposable plastic products worldwide and dispel the idea that plastic waste can be just thrown away.

'Microplastics are likely the most numerically abundant items of plastic debris in the ocean today, and quantities will inevitably increase, in part because large, single plastic items ultimately degrade into millions of microplastic pieces,' according to Lavender and Thompson's report in the journal Science.

'Given concerns over microplastics, the temptation may be to 'clean up the mess', but substantial removal of microplastic debris from the environment is not feasible. Identification and elimination of some of the major inputs of plastic waste is a more promising route, as is reduced consumption and the recognition of plastic waste as a reusable resource,' the report says.

Microplastics are easily ingested by fish, mussels and other sea animals, and there is growing scientific evidence linking them to the passage of deadly, persistent chemicals through the environment, such as the pesticide DDT and toxic PCBs, making them more concentrated when they come into contact with marine life, the report warns.

Professor Thompson, a marine biologist at Plymouth University, first coined the term 'microplastics' in 2004. It includes larger plastic items that have been degraded down in size as well as tiny plastic 'micro-beads' used to exfoliate skin in soaps, creams and other products, which are deliberately designed to be washed down the drain.

'We know that a range of organisms will eat these microplastics and the prevalence in populations of some species may reach 80 per cent,' he said. 'Microplastic beads may also lead to the transfer of chemical contaminants into the animals that ingest the plastic. This is in addition to the physical damage done by the plastic itself.'

Professor Law, a marine biologist at the Sea Education Association in Woods Hole, Massachusetts, was one of the first to describe the widespread plastic contamination in the North Atlantic Ocean from data gathered over more than 25 years. She said: 'Our scientific understanding of this environmental problem is accelerating rapidly, with many new research efforts that go well beyond simply documenting the presence of plastic in the ocean.'

The problem is not insurmountable, Professor Thompson said, as long as people are aware of how important it is to limit the amount of plastic waste that is needlessly thrown away. 'We all use plastics every day, so whether it's a plastic bag we choose not to take home from the supermarket or a bottle that we recycle, ultimately it will be the collective actions of the many that will make the difference,' he added.

The Marine Conservation Society said recent figures show the amount of plastic waste on British beaches – from plastic bottles and carrier bags to condoms and nappies – is now higher than at any time over the past 20 years. The charity hopes to recruit 10,000 volunteers this summer to help clear the waste in a mass-participation 'Great British Beach Clean'.

A survey by the society last year found an average of 2,309 pieces of litter for every kilometre of coastline – a 10-year record, it said.

quinta-feira, 10 de julho de 2014

HARD TO BELIEVE! PERMISSION OF NAMIBIA GOVERNMENT TO KILL RARE ELEPHANTS

[Reproduced from POPULAR SCIENCE]



Desert elephants in Namibia
Greg Willis via Wikimedia Commons

Poaching threatens the continued survival of African elephants, with 30,000 to 38,000 animals killed every year. This activity is typically illegal. In a concerning move, the country of Namibia (in southwest Africa) has now issued nine permits to hunt desert elephants, of which perhaps only 100 remain, according to the Conservation Action Trust. The permits are for shooting adult males--and the trust estimate there are only 18 of these bulls remaining. In other words, the move could wipe out half of them. 

Namibia's environment and tourism ministry, however, claims that there are 600 desert elephants left, and that the desert population is no different from the country's other groups of African elephants. So, no big deal. 

But conservationists--and scientists--disagree, as John Platt writes at Scientific American

Desert elephants, which can only be found in Namibia and Mali, are not a separate species or subspecies. They are, however, uniquely adapted to their arid environments. The animals have a few morphological differences from savanna elephants (Loxodonta africana), most notably their thinner bodies and wider feet. They also possess a number of unique behaviors shared by no other African elephants, such as digging wells to purify their drinking water. Tourists routinely travel to Namibia to volunteer in the elephants’ conservation.

The first of these permits was already executed, when hunters shot a "virile young male elephant" on June 21. 

sábado, 5 de julho de 2014

"PRESLEY" THE SPIX'S MACAW, Cyanopsitta spixii, IS DEAD

["Ararinha-azul", as it is known in Brazil. See this blog in Portuguese www.ecologiaemfoco.blogspot.com]


A rare blue parrot that was among the last wild-born members of its species and was believed to have inspired the movie 'Rio' has died outside São Paulo, Brazil.

[Reproduced from National Geographic, Daily News]


The bird was a Spix's macaw named Presley, and he was around 40 years old when he died Wednesday. He was thought to be the second-to-last of the remaining wild-born parrots.


Presley's death is a blow to conservation efforts in both a symbolic and literal sense. Critically endangered, these native Brazilian birds (Cyanopsitta spixii) are believed to be extinct in the wild. Decades of deforestation and rampant wildlife trafficking have besieged the medium-size macaws, who also ended up having to compete for nest space with introduced Africanized honeybees.

Now, the fewer than 100 remaining Spix's macaws are cloistered in captive breeding programs and refuges throughout the world—and the small population is vulnerable to genetic defects caused by inbreeding. Presley offered the opportunity to inject some much-needed genetic diversity into the population.

But he left no offspring.

There are reports that Presley himself influenced the 2011 movie Rio, an animated film that tells the tale of a lone male Spix's macaw. Found living in the United States, the bird, named Blu, is initially unable to fly. But he returns to Brazil and finds the only other known surviving member of his species, a female named Jewel. Together, the two movie macaws battle wildlife traffickers and eventually start a small family.

Director Carlos Saldanha has said he hoped the movie would raise awareness of the challenges facing endangered birds in Brazil. "I wanted [to feature] the rarest bird," he told the website Bird Channel in 2011. "The Spix's macaw truly is the rarest."

Released this year, an optimistic sequel, Rio 2, follows Blu and Jewel as they encounter a hidden population of Spix's macaws in the Brazilian Amazon.

Saldanha did not respond to requests for comment.

Presley’s story shares many similarities with Blu’s first chapter. More than a decade ago, Presley rose to fame when he was improbably found living in Colorado. Like so many of his kin, the bird had been smuggled out of his native Brazil in the 1970s, just as governments were beginning to regulate illegal wildlife trade. From his birthplace in the São Francisco Valley in northern Bahia, Presley traveled through several private bird collections in Europe before ending up in the American West.

During his years abroad, Presley's macaw kin vanished from Brazil's forests, with the last known wild Spix's disappearing in 2000.

In 2002, parrot enthusiast Mickey Santi answered the phone at the veterinarian's office where she worked. On the other end was a caller with a question about her captive Spix's macaw.

Skeptical of the caller's species identification, Santi went to visit the woman—and found Presley sitting in a small cage. He wasn't in great shape, and couldn’t fly. After six months of rehabilitation, Presley returned to Brazil via the San Diego Zoo, where geneticists collected a small sample of the bird's DNA.

Once in Brazil, Presley lived in the São Paulo zoo for several years. In 2006, he moved to the Lymington Foundation, a privately owned refuge and breeding facility for rare parrots in the forest outside São Paulo.

"He was very affectionate–just a very congenial bird, very chirpy, very talkative. He loved visitors," says Bill Wittkoff, Lymington's executive director. "He's got an aviary that we'd wheel in and out, for the cold in wintertime and because of very, very hot sun. We'd go by his aviary often and he'd always gives us a chirp, a hello."

Many parrots need the company of other birds to thrive. Bill Wittkoff and his wife Linda, Lymington's director, first tried to breed Presley with a female Spix's named Flor; the pair produced a bunch of eggs, but the eggs were all sterile. When Flor was transferred to a different breeding program, a new friend—Killer, a Golden Conure—kept Presley company. When Killer died, Presley's new partner was Priscilla, a Vinaceous Amazon parrot.

Presley "was doing pretty well," says Linda Wittkoff. "His death came as a surprise."

Over the past year, health exams had revealed that Presley had an irregular heartbeat. When he suddenly lost his appetite late last week, the Wittkoffs took him to a university veterinary clinic in nearby Botucatu.

They'd hoped Presley would recover so he could move to a refuge closer to the clinic. The plan, they said, was for Presley to try artificially inseminating some of the female Spix's at the refuge, a procedure that hadn't been attempted yet.

Most captive Spix's macaws are closely related, and when such individuals breed, detrimental combinations of genes that would normally be eliminated are passed down. As a result, offspring are born with a host of problems, including increased disease susceptibility and infertility. Because he was unrelated to the females, Presley could have added some crucial genetic diversity into the mix.

But at 7 a.m. on Wednesday morning, Presley died, leaving the Wittkoffs without their cheerful survivor and the world without its best-known Spix's macaw. Linda Wittkoff says the veterinary clinic is working hard to preserve his reproductive tissues and genetic material, and save some of what he might have passed down.

"To us, Presley is a symbol of the best and worst in mankind," the Wittkoffs wrote in a letter announcing his death. "The love, care, concern and effort to help and preserve [on one side], with the greed, selfishness, and lack of concern for the animal world on the other side."