Category Archives: endangered species

How Nuclear Explosions Affect the Deep Ocean

Radioactive carbon released into the atmosphere from 20th-century nuclear bomb tests has reached the deepest parts of the ocean, new research finds.  A new study in AGU’s journal Geophysical Research Letters finds the first evidence of radioactive carbon from nuclear bomb tests in muscle tissues of crustaceans that inhabit Earth’s ocean trenches, including the Mariana Trench, home to the deepest spot in the ocean.

Mariana Deep Ocean Trench

Organisms at the ocean surface have incorporated this “bomb carbon” into the molecules that make up their bodies since the late 1950s. Crustaceans in deep ocean trenches are feeding on organic matter from these organisms when it falls to the ocean floor. The results show human pollution can quickly enter the food web and make its way to the deep ocean, according to the study’s authors.



Crustacean

According to researchers, water containing carbon-14 can take centuries to circulate throughout the ocean, but the food web drastically accelerated the process. “There’s a very strong interaction between the surface and the bottom, in terms of biologic systems, and human activities can affect the biosystems even down to 11,000 meters,” said Weidong Sun, a coauthor of the study, “so we need to be careful about our future behaviors.”

RADIOACTIVE CARBON FROM NUCLEAR BOMB TESTS FOUND IN DEEP OCEAN TRENCHES
AGU Press Release, 8 May 2019

5,000 Eyes in the Sky: environmental monitoring

The most advanced satellite to ever launch from Africa will soon be patrolling South Africa’s coastal waters to crack down on oil spills and illegal dumping.  Data from another satellite, this one collecting images from the Texas portion of a sprawling oil and gas region known as the Permian Basin, recently delivered shocking news: Operators there are burning off nearly twice as much natural gas as they’ve been reporting to state officials.

With some 5,000 satellites now orbiting our planet on any given day…. They will help create a constantly innovating industry that will revolutionize environmental monitoring of our planet and hold polluters accountable…

A recent study by Environmental Defense Fund focused on natural gas flares from the wells in the Permian Basin, located in Western Texas and southeastern New Mexico. Our analysis proved that the region’s pollution problem was much larger than companies had revealed.  A second study about offshore gas flaring in the Gulf of Mexico, published by a group of scientists in the Geophysical Research Letters, showed that operators there burn off a whopping 40% of the natural gas they produce.

Soon a new satellite will be launching that is specifically designed not just to locate, but accurately measure methane emissions from human-made sources, starting with the global oil and gas industry.  MethaneSAT, a new EDF affiliate unveiled in 2018, will launch a future where sensors in space will find and measure pollution that today goes undetected. This compact orbital platform will map and quantify methane emissions from oil and gas operations almost anywhere on the planet at least weekly.

Excerpts from Mark Brownstein, These pollution-spotting satellites are just a taste of what’s to come, EDF, Apr. 4, 2019

Assisted Evolution: Engineering Coral Reefs

Imagine ecologists cultivating whole new breeds of trees to restock a devastated wilderness…. Coral conservation has traditionally focused on minimizing damage from insults such as water pollution, invasive starfish, and destructive fishing or tourism. In the Caribbean, some conservationists have worked to “replant” damaged coral. But Gates and Van Oppen [two scientists]  have something more intrusive in mind. They want to try to alter the genetics of coral or the microbes that live on it. They dubb the effort “assisted evolution.”

Coral’s most remarkable characteristic—being an animal that is part plant—is also its Achilles’ heel in a hotter world. Normally, coral polyps—the individual coral organisms, which resemble a sea anemone the size of a pinhead—live in harmony with their algal partners, which help feed the polyps and give corals their bright colors. But during heat waves, the relationship sours. Overheated polyps perceive the algae as an irritant and eject them like unwanted squatters. The coral is left bleached, bone-white and starving. If the heat persists, the coral won’t take in new algae and can die.  The bond between coral and algae is complicated, however, and still not fully understood. Just 25 years ago, for example, researchers believed that coral housed just one variety of symbiotic algae. Now, they have identified hundreds. And they are just beginning to examine the role played by the coral’s microbiome, the menagerie of bacteria that inhabit a coral polyp.

Coral bleaching right.

But the complexity also offers multiple paths for scientists trying to forge a less fragile bond between coral and algae. Today, four major lines of research exist: One involves cross-breeding corals to create heat-tolerant varieties, either by mixing strains within a species or by crossing two species that would not normally interbreed. The second enlists genetic engineering techniques to tweak coral or algae. A third tries to rapidly evolve hardier strains of coral and algae by rearing them for generations in overheated lab conditions. A fourth approach, the newest, seeks to manipulate the coral’s microbiome…

In 2018, Cleves [scientist] became the first to report successfully using the CRISPR-Cas9 gene-editing tool on coral. CRISPR is often touted as a method for making genetically modified species. But Cleves says he isn’t interested in creating new kinds of coral. Rather, he sees CRISPR as a tool for deciphering the inner workings of coral DNA by knocking out, or disabling, genes one by one. He hopes to identify genes that might serve as “master switches” controlling how coral copes with heat and stress—knowledge that could help researchers quickly identify corals in the wild or in the laboratory that are already adapted to heat.

Either way, such efforts to re-engineer coral reefs make people such as David Wachenfeld, chief scientist for the Great Barrier Reef Marine Park Authority here, uneasy. The authority is supposed to protect the reef and regulate activities there. In the past, that meant a hands-off approach. Now, he concedes that “it is almost inconceivable that we’re not going to need these tools.” But, he adds, “That doesn’t mean I’m happy about any of this. This is crisis management.”

He ticks off a list of potential difficulties. Scientists focused on breeding heat-loving coral have to avoid weakening other key traits, such as coping with cold. Introducing a new coral on the scale needed to make a dent on a network of 2900 reefs spanning an area half the size of Texas is a daunting challenge. Even in its damaged state, the Great Barrier Reef still contains hundreds of millions of corals—enough to swamp the genetic impact of new coral species…

Could some kind of “super coral,” as some researchers have dubbed them, also run amok in delicate coral ecosystems.

Excerpts from  The Reef Builders, Science, Mar. 22, 2019

The Pristine Waters of Alaska and Big Oil: Exxon Valdez

Thirty years ago this Sunday, at just after midnight on March 24, 1989, the Exxon Valdez supertanker ran aground in Prince William Sound off the south coast of Alaska. No-one was hurt, but the ship’s hull was ruptured, and of the 1.26m barrels of crude on board about 258,000 spilled into the water. The National Transportation Safety Board inquiry found that the causes of the accident included the failure of the ship’s master to provide a proper navigation watch “because of impairment from alcohol”, as well as inadequate personnel training and deficient management oversight.

In terms of volume released, the spill does not make the list of the world’s largest, but it was one of the worst in US waters. The harm caused by a spill is also not a direct function of the quantity of oil: a release in the cool waters of Prince William Sound, where oil breaks down more slowly, could be more damaging than a larger volume in the Gulf of Mexico, where temperatures are warmer and there are more plentiful microbes that thrive on natural oil seeps. The location of the spill also added to its emotional impact: the pictures of the oil fouling the pristine waters of Alaska shocked the world.

Exxon Valdez Clean up

Even decades after the spill, there was still evidence of the oil visible on some of the beaches in the region. Exxon agreed to pay $900m for restoration to settle damages claims from the state and federal governments, and the work of the Exxon Valdez Oil Spill Trustee Council, which oversees the use of that money, goes on. The Pacific herring population in Prince William Sound has collapsed since the early 1990s, although it is not clear whether the spill was responsible, and other wildlife such as sea ottershave recovered.

For the oil industry, the disaster was transformative. Single-hulled tankers began to be phased out, to be replaced by safer double hulls, first in the US and then worldwide. The process was accelerated after the sinking of the tanker Erika off the coast of Brittany in 1999, an accident that was considered one of France’s worst environmental disasters.

For Exxon in particular, the Valdez spill prompted a fundamental rethink of its safety culture and practices. The company developed what is called its Operations Integrity Management System, a framework that “puts safety at the center of everything we do”. By the time that Rex Tillerson ran ExxonMobil, in 2006-16, the company could rightly boast of having a safety record that was admired across the industry, and its OIMS was widely emulated….But any employer’s highest duty is to make sure workers can do their jobs safely and go home at the end of the day, and on that measure Exxon has performed better than its peers. Any workplace death is one too many, of course, but over the past decade Exxon has suffered significantly fewer than other leading oil companies.

Excerpts from Ed Crooks,  The Exxon Valdez spill 30 years on, Financial Times, Mar. 22, 2019

A Swamp of Oil Pollution: Ogoniland

Status of Cleaning up Oil Pollution in Ogoniland, Nigeria:

According to the Civil Society Legislative Advocacy Centre (CISLAC), the clean-up of Ogoniland is bugged with identity crisis, procedures, processes and overheads. Perception of corruption, lack of transparency and accountability, complex decision making, internal crisis of choice between Ogoni and the Niger Delta….The United Nations Environment Programme (UNEP) released its Environmental Assessment of Ogoniland in August 2011 after series of protests of oil spillage in the community that culminated to the death of Ken Sarowiwa and eight others.  The report  made recommendations to the government, the oil and gas industry and communities to begin a comprehensive cleanup of Ogoniland, restore polluted environments and put an end to all forms of ongoing oil contamination in the region…

Pollution of soil by petroleum hydrocarbons in Ogoniland is extensive in land areas, sediments and swampland.  In 49 cases, UNEP observed hydrocarbons in soil at depths of at least 5 metres. At 41 sites, the hydrocarbon pollution has reached the groundwater at levels in excess of the Nigerian standards permitted by National Laws..

Excerpts from Ogoni: Cleanup Exercise by Authorities Questioned by Civil Society Groups, UNPO, Mar. 12, 2019

How to Save the Rhino? Torture and Kill Civilians

In national parks across Asia and Africa, the beloved nonprofit WWF  with the cuddly panda logo funds, equips, and works directly with paramilitary forces that have been accused of beating, torturing, sexually assaulting, and murdering scores of people…WWF has provided high-tech enforcement equipment, cash, and weapons to forces implicated in atrocities against indigenous communities…Villagers have been whipped with belts, attacked with machetes, beaten unconscious with bamboo sticks, sexually assaulted, shot, and murdered by WWF-supported anti-poaching units, according to reports and document

 WWF has provided paramilitary forces with salaries, training, and supplies — including knives, night vision binoculars, riot gear, and batons — and funded raids on villages…The charity has operated like a global spymaster, organizing, financing, and running dangerous and secretive networks of informants motivated by “fear” and “revenge,” including within indigenous communities, to provide park officials with intelligence — all while publicly denying working with informants.

The charity funnels large sums of cash to its field offices in the developing world where staff work alongside national governments — including brutal dictatorships — to help maintain and police vast national parks that shelter endangered species. But many parks are magnets for poachers, and WWF expends much of its energy — and money — in a global battle against the organized criminal gangs that prey on the endangered species the charity was founded to protect.  It’s a crusade that WWF refers to in the hardened terms of war. Public statements speak of “boots on the ground,” partnerships with “elite military forces,” the creation of a “Jungle Brigade,” and the deployment of “conservation drones.”  WWF is not alone in its embrace of militarization: Other conservation charities have enlisted in the war on poaching in growing numbers over the past decade, recruiting veterans from the wars in Afghanistan and Iraq to teach forest rangers counterinsurgency techniques

The enemy is real, and dangerous. Poaching is a billion-dollar industry that terrorizes animals and threatens some species’ very existence. Poachers take advantage of regions ravaged by poverty and violence. And the work of forest rangers is indeed perilous: By one 2018 estimate, poachers killed nearly 50 rangers around the world in the previous year. But like any conflict, WWF’s war on poaching has civilian casualties.

Indigenous people living near one park in southeast Cameroon described a litany of horrors incuding dead-of-night break-ins by men wielding machetes, rifle butt bludgeonings, burn torture involving chilis ground into paste, and homes and camps torched to the ground. Their tormentors in these accounts were not poachers, but the park officials who police them. Although governments employ the rangers, they often rely on WWF to bankroll their work.  …Documents reveal WWF’s own staffers on the ground are often deeply entwined with the rangers’ work — coordinating their operations, jointly directing their raids and patrols alongside government officials, and turning a blind eye to their misdeeds.

Iindigenous groups — both small-fry hunters and innocent bystanders — say they suffer at the hands of the rangers.  Nepal’s park officials were given this free rein decades ago, shortly after WWF first arrived in Chitwan in 1967 to launch a rhinoceros conservation project in a lush lowland forest at the foot of the Himalayas. To clear the way, tens of thousands of indigenous people were evicted from their homes and moved to areas outside the park’s boundaries..

The park’s creation radically changed their way of life: Now they must scrape together money to buy tin for their roofs, pay hospital bills, and farm new crops. They also live in fear of the park’s wild animals, which, while rising in number thanks to anti-poaching efforts, have destroyed crops and mauled people to death.  Rhinoceros horns can sell for hundreds of thousands of dollars on the black market. Professional poachers offer a tiny portion to locals who assist them, which can be hard for impoverished residents of villages to turn down.

Chitwan’s forest rangers work alongside over 1,000 soldiers from the park’s army battalion. Nepalese law gives them special power to investigate wildlife-related crimes, make arrests without a warrant, and retain immunity in cases where an officer has “no alternative” but to shoot the offender, even if the suspect dies….. Indigenous groups living near Chitwan have long detailed a host of abuses by these forces. Villagers have reported beatings, torture, sexual assaults, and killings by the park’s guards. They’ve accused park officials of confiscating their firewood and vegetables, and forcing them into unpaid labor.

WWF’s work with violent partners spans the globe. In Central Africa, internal documents show the charity’s close involvement in military-style operations with both a repressive dictatorship and a notoriously fierce army. …The park’s management plan says WWF will help organize raids, known as “coup de poings,” on local villages suspected of harboring poachers. A confidential internal report found that such missions, frequently conducted in the dead of night with the help of police units, were often violent.

Excerpts from WWF Funds Guards Who Have Tortured And Killed People, BuzzFeed News

Who is Afraid of Bats?

More than 50,000 of the fruit bats are thought to have been killed in Mauritius since 2015, in an attempt to protect fruit in orchards.  The bats – also known as flying foxes – are resorting to eating in orchards to survive because only 5 per cent of Mauritius’s native forests remain, animal experts warned.  Fruit bats are vital for biodiversity as they pollinate flowers and scatter seeds, enabling trees and plants to grow and spread, according to conservationists.  But populations of the flying foxes have fallen by more than 50 per cent in four years, said Vincent Florens, an ecologist at the University of Mauritius. Some believe fewer than 30,000 now remain.

The first cull, in 2015, killed 30,000, and in a second cull, the following year, 7,380 were targeted.  The latest cull involved 13,000.  Prof Florens said he believed the number killed is much higher than the 50,300 government figure.  “The culls took place late in the year, when many mothers were pregnant or had babies,” he told National Geographic. “You shoot one bat and basically kill two.” Others were likely to have been injured and died later, he said.

Scientists are supporting a lawsuit against the government on grounds of animal welfare violations to prevent any more culls…Mahen Seeruttun, Mauritius’s minister of agro-industry and food security, told FDI Spotlight: “We have a large population of bats who will eat fruit crops.

Excerpts from Endangered fruit bats ‘being driven to extinction’ in Mauritius after mass culls kill 50,000, Independent, Mar. 4, 2019