by DGR News Service | Dec 6, 2020 | Toxification
This article written by Cypress Hansen describes the harm caused to large mammals due to pollutants and toxic chemicals entering our seas and oceans. Cypress suggests these beings offer a significant indicator of the health of earth’s waters.
By Cypress Hansen/Mongabay
- Dozens of whales and dolphins that beached themselves on the U.S. Atlantic Coast contained high levels of pollutants and heavy metals in their blubber and liver tissues, a new study shows.
- For the first time, scientists detected the widely used antibiotic Triclosan and the popular herbicide Atrazine in rare species that spend their lives hundreds of kilometers offshore.
- While the findings suggest these toxins may contribute to the demise of marine mammals, more research is needed to determine direct cause and effect.
Marine mammals stranded on beaches in the southeastern United States died with high levels of pollutants stored in their organs and blubber, researchers reported recently in Frontiers in Marine Science.
“Marine mammals are like a litmus test for the ecosystem,”
said lead author Annie Page-Karjian, clinical veterinarian at Harbor Branch Oceanographic Institute, Florida Atlantic University. “Looking at them and the toxins they’re exposed to gives us a snapshot of what is happening in the marine environment.”
Thousands of chemicals from households, farms and factories quietly enter the ocean every day. Some readily absorb onto bits of another common pollutant: plastic. When mistaken for food by small animals like plankton and anchovies, plastic enters the food chain—along with the chemicals it soaked up.
While the amount of toxins eaten by one anchovy is minuscule, most marine mammals are apex predators, eating hundreds of fish, squid or krill each day. Through a process called bioaccumulation, small amounts of ingested toxins concentrate in carnivores over time, compromising their immune systems and bodily functions.
The researchers collected autopsy data from 83 toothed whales and dolphins that washed up in Florida and North Carolina between 2012 and 2018. They examined 46 bottlenose dolphins (Tursiops truncatus), 21 pygmy sperm whales (Kogia breviceps), and small numbers of animals from nine other species.
The team screened liver and blubber samples for heavy metals like mercury, lead and arsenic. They also checked for Triclosan, an antibiotic used in dozens of household products; Atrazine, an herbicide used on corn and sugarcane fields; and a handful of plasticizing chemicals such as BPA and NPE, found in countless products from food containers to clothing.
“We found some of the highest mercury concentrations that have ever been reported in any living thing anywhere, ever,”
Page-Karjian told Mongabay. Two bottlenose dolphins found stranded in Waves, North Carolina, and North Palm Beach, Florida, had more than 1,400 micrograms of mercury per gram of tissue (1,400 parts per million) in their livers. Just 10 parts per million of mercury can cause neurological damage in human fetuses.
Besides toxins in their tissues, every animal had a number of physical maladies including kidney deterioration, thyroid tumors and chronic liver disease. . .
This article was written by Cypress Hansen and published on 24 November 2020 in Mongabay. You can read the full, original article here:
https://news.mongabay.com/2020/11/are-industrial-chemicals-killing-rare-whales-and-familiar-dolphins/
by DGR News Service | Oct 4, 2020 | Listening to the Land
This piece is a brief excerpt from Brian Doyle‘s book “The Plover“. Doyle offers the reader a description of the neverending ebb and flow of life in the Pacific Ocean and human hunger for a ‘story’.
Featured image: Big Island, Hawaii via Unsplash
Consider, for a moment, the Pacific Ocean not as a vast waterway, not as a capacious basin for liquid salinity and the uncountable beings therein, nor as a scatter of islands still to this day delightfully not fully and accurately counted, but as a country in and of itself, dressed in bluer clothes than the other illusory entities we call countries, that word being mere epithet and label at best, and occasion and excuse for murder at worst; rather consider the Pacific a tidal continent, some ten thousand miles long and ten thousand miles wide, bordered by ice at its head and feet, by streaming Peru and Palau at its waist; on this continent are the deepest caves, the highest mountains, the loneliest prospects, the emptiest aspects, the densest populations, the most unmarked graves, the least imprint of the greedy primary ape; in this continent are dissolved beings beyond count, their shells and ships and fins and grins; so that the continent, ever in motion, drinks the dead as it sprouts new life; the intimacy of this closer and blunt and naked in Pacifica than anywhere else, by volume; volume being an apt and suitable word to apply to that which is finally neither ocean nor continent but story always in flow, narrative that never pauses, endless ebb and flow, wax and wane, a book with no beginning and no end; from it emerged the first fundament and unto it shall return the shatter of the world that was, the stretch between a page or two of the unimaginable story; but while we are on this page we set forth on journeys, on it and in it, steering by the stars, hoping for something we cannot explain; for thousands of years we said gold and food and land and power and freedom and knowledge and none of those were true even as all were true, as shallow waters; we sail on it and in it because we are starving for story, our greatest hunger, our greatest terror; and we love most what we must have but can never have; and so on we go, west and then west.
You can find and/or buy a copy of the book “The Plover” here:
https://www.indiebound.org/book/9781250062451
by DGR News Service | Sep 11, 2020 | Biodiversity & Habitat Destruction
This article was written by Malavika Vyawahare on 1 September 2020 and originally published on Mongabay.
- People gathered in the thousands in Mauritius’s capital, Port Louis, to protest the government’s response to a recent oil spill.
- The Japanese-owned freighter M.V. Wakashio crashed into the coral reef barrier off the island’s southeastern coast on July 25 and leaked about 1,000 tons of fuel oil into the sea near ecologically sensitive areas, before breaking in half a few weeks later.
- The stranding of at least 39 dolphins and whales near the site has sparked an outcry, though a link between the Wakashio shipwreck and the beachings has not yet been established.
- In a controversial move, the Mauritian government decided to sink the front half of the ship several kilometers away from the crash site in open waters, which some experts say could have impacted the dolphin and whale populations.
Thousands of people demonstrated in Mauritius on Aug. 29 over the government’s handling of a recent ship grounding that spilled 1,000 tons oil in the seas around the island nation. In what appears to be the latest toll in the incident, dolphins and whales have beached close to where the M.V. Wakashio freighter ran aground and broke up. Thirty-nine of the mammals have beached in the week to Aug. 28. Social media is awash with photos of the stranded animals, including mothers and calves.
At a press conference Sudheer Maudhoo, the Mauritian fisheries, marine resources and shipping minister, called the beachings a “sad coincidence.” Though a link between the deaths and oil contamination has yet to be established, disaffection has swelled in the aftermath of the spill, with protesters taking to the streets of the capital, Port Louis, and wielding an inflatable dolphin with “Inaction” written on it.
The Wakashio struck the coral reef barrier off the country’s southeastern coast on July 25; the damage to its fuel tankers led to a leak on Aug. 6. The fact that the ship lay lodged in the coral reef for more than 10 days before any decisive action by the government has become a sour point for Mauritians demanding answers from the authorities.
“The oil spill became like a culmination of growing frustration in the country. Since we have this new government, there were a series of issues and the Wakashio oil spill was the last straw,” said Mokshanand Sunil Dowarkasing, a former member of parliament who now works with Greenpeace in Mauritius. The vessel lay stranded in the vicinity of at least three sites of ecological significance: Blue Bay Marine Area; Pointe d’Esny, the largest remaining wetland in Mauritius; and the coral isle of Ile aux Aigrettes, which is a nature reserve. Facing mounting pressure from abroad and within the country, the government hastened efforts to pump out the oil that remained on board, even as a ship was at the brink of breaking apart. On Aug. 15, it broke into two, but by then most of the oil on board had been removed. The situation, however, has only grown murkier since.
This article was written by Malavika Vyawahare on 1 September 2020 and originally published on Mongabay. The original article can be accessed here:
https://news.mongabay.com/2020/09/mauritians-take-to-the-street-over-oil-spill-and-dolphin-and-whale-deaths/
by DGR News Service | Aug 26, 2020 | Mining & Drilling
In this article Julia Barnes describes the process of seabed mining and calls for organized resistance to this new ecocidal extraction industry. This article was originally published in Counterpunch
They want to mine the deep sea.
We shouldn’t be surprised. This culture has stolen 90% of the large fish, created 450 de-oxygenated areas, and murdered 50% of the coral reefs. It has wiped out 40% of the plankton. It has warmed and acidified the water to a level not seen since the Permian mass extinction. And indeed, there is another mass extinction underway. Given the ongoing assault on the ocean by this culture, there is serious question as to whether the upper ocean will be inhabitable by the end of this century.
For some people, a best-case scenario for the future is that some bacteria will survive around volcanic vents at the bottom of the ocean.
Deep sea mining is about to make that an unlikely possibility. It’s being touted as history’s largest mining operation. They have plans to extract metals from deposits concentrated around hydrothermal vents and nodules – potato sized rocks – which are scattered across the sea floor. Sediment will be vacuumed up from the deep sea, processed onboard mining vessels, then the remaining slurry will be dumped back into the ocean. Estimates of the amount of slurry that will be processed by a single mining vessel range from 2 to 6 million cubic feet per day. I’ve seen water go from clear to opaque when an inexperienced diver gives a few kicks to the sea floor.
Now imagine 6 million cubic feet of sediment being dumped into the ocean. To put that in perspective, that’s about 22,000 dump trucks full of sediment – and that’s just one mining vessel operating for one day. Imagine what happens when there are hundreds of them. Thousands of them.
Plumes at the mining site are expected to smother and bury organisms on the sea floor. Light pollution from the mining equipment would disrupt species that depend on bio-luminescence. Sediment plumes released at the surface or in the water column would increase turbidity and reduce light, disrupting the photosynthesis of plankton.
A few environmental groups are calling for a moratorium on deep sea mining.
Meanwhile, exploratory mining is already underway. An obscure organization known as the International Seabed Authority has been given the responsibility of drafting an underwater mining code, selecting locations for extraction, and issuing licenses to mining companies. Some companies claim that the damage from deep sea mining could be mitigated with proper regulations. For example, instead of dumping slurry at the surface, they would pump it back down and release it somewhere deeper.
Obviously, regulations will not stop the direct harm to the area being mined. But even if the most stringent regulations were put in place, there still exists the near-certainty of human error, pipe breakage, sediment spills, and outright disregard for the rules.
As we’ve seen with fisheries, regulations are essentially meaningless when there is no enforcement. 40% of the total catch comes from illegal fishing. Quotas are routinely ignored and vastly exceeded. On land, we know that corporations will gladly pay a fine when it is cheaper to do so than it is to follow the rules. But all this misses the point which is that some activities are so immoral, they should not be permitted under any circumstances.
Permits and regulations only serve to legalize and legitimize the act of deep sea mining, when a moratorium is the only acceptable response.
Canadian legislation effectively prohibits deep sea mining in Canada’s territorial waters. Ironically, Canadian corporations are leading the effort to mine the oceans elsewhere. A spokesperson from the Vancouver-based company Deep Green Metals attempted to defend deep sea mining from an environmental perspective,
“Mining on land now takes place in some of the most biodiverse places on the planet. The ocean floor, on the other hand, is a food-poor environment with no plant life and an order of magnitude less biomass living in a larger area. We can’t avoid disturbing wildlife, to be clear, but we will be putting fewer organisms at risk than land-based operations mining the same metals.” (as cited in Mining Watch).
This argument centers on a false choice.
It presumes that mining must occur, which is absurd. Then, it paints a picture that the only area affected will be the area that is mined. In reality, the toxic slurry from deep sea mining will poison the surrounding ocean for hundreds of miles, with heavy metals like mercury and lead expected to bio-accumulate in everyone from plankton, to tuna, to sharks, to cetaceans.
A study from the Royal Swedish Academy of Sciences stated that “A very large area will be blanketed by sediment to such an extent that many animals will not be able to cope with the impact and whole communities will be severely affected by the loss of individuals and species.”
The idea that fewer organisms are at risk from deep sea mining is an egregious lie.
Scientists have known since 1977 that photosynthesis is not the basis of every natural community. There are entire food webs that begin with organic chemicals floating from hydrothermal vents. These communities include giant clams, octopuses, crabs, and 10-foot tube worms, to name a few. Conducting mining in these habitats is bad enough, but the effects go far beyond the mined area.
Deep sea mining literally threatens every level of the ocean from surface to seabed. In doing so, it puts all life on the planet at risk. From smothering the deep sea, to toxifying the food web, to disrupting plankton, the tiny organisms who produce two thirds of the earth’s oxygen, it’s just one environmental disaster after another.
The most common justification for deep sea mining is that it will be necessary to create a bright green future.
A report by the World Bank found that production of minerals such as graphite, lithium, and cobalt would need to increase by nearly 500% by 2050 to meet the growing demand for so-called renewable energy. There is an article from the BBC titled “Electric Car future May Depend on Deep Sea Mining”. What if we switched the variables, and instead said “the future of the ocean depends on stopping car culture” or “the future of the ocean depends on opposing so-called renewable energy”. If we take into account all of the industries that are eviscerating the ocean, it must also be said that “the future of the ocean depends on stopping industrial civilization”.
Evidently this culture does not care whether the ocean has a future. It’s more interested in justifying continued exploitation under the banner of green consumerism. I do not detail the horrors of deep sea mining to make a moral appeal to those who are destroying the ocean. They will not stop voluntarily. Instead, I am appealing to you, the reader, to do whatever is necessary to make it so this industry cannot destroy the ocean.
Julia Barnes is a filmmaker, director of Sea of Life and of the forthcoming film Bright Green Lies.
Featured image: deep-sea coral, Paragorgiaarborea, on the edge of Hendrickson Canyon roughly 1,775 meters or nearly 6000 feet underwater in the Toms Canyon complex in the western Atlantic. NOAA photo.
by DGR News Service | Jul 23, 2020 | Climate Change
Siberian heat drives Arctic ice extent to record low for early July
by Gloria Dickie / Mongabay
- On June 17, 2020, a Siberian town registered a temperature of 100 degrees Fahrenheit, the highest ever recorded above the Arctic Circle. High temps across the region are driving impacts of great concern to scientists, firefighters, and those who maintain vulnerable Arctic infrastructure, including pipelines, roads, and buildings.
- The Siberian heat flowed over the adjacent Arctic Ocean where it triggered record early sea ice melt in the Laptev Sea, and record low Arctic sea ice extent for this time of year. While 2020 is well positioned to set a new low extent record over 2012, variations in summer weather could change that.
- The heat has also triggered wildfires in Siberia, releasing 59 million metric tons of carbon dioxide into the atmosphere in June and drying out the region’s tundra. Some blazes are known as “zombie fires” possibly having smoldered underground all winter between 2019 and 2020.
- Also at risk from the rapid rise in warmth is civil and military infrastructure, built atop thawing permafrost. As Siberia heated up this year, a fuel tank at a Russian power plant collapsed, leaking 21,000 tons of diesel into the Ambarnaya and Dadylkan rivers, a major Arctic disaster. Worse could come as the world continues warming.
The record-setting heat wave that swept through Arctic Siberia in June has yielded a wide-range of deleterious effects in the expansive polar and sub-polar region, triggering raging wildfires, thawing permafrost, and now, spurring the rapid melt-out of Arctic sea ice.
Last month, Siberian temperatures spiked, reaching a record average more than 5 degrees Celsius (9 degrees Fahrenheit) hotter than normal, according to recently released data from the European Union. The remote town of Verkhoyansk in northeast Siberia recorded a reading of more than 38 degrees Celsius (100 degrees Fahrenheit) on June 17, the highest temperature ever recorded north of the Arctic Circle.
Under this metaphorical blow torch, ice extent in the seas that border Siberia has plummeted in recent days, pushing the Arctic region as a whole into the record books. Between July 2 and July 7, sea ice extent across the Arctic Ocean went from being at its fifth lowest extent for this time of year since satellite record-keeping began in 1979, melting into first place, slightly below even the calamitous year of 2012 which eventually saw sea ice hit a record low at the end of the summer melt season in September.
As of July 9, sea ice extent in the global Arctic sits at just 8.310 million square kilometers (3.2 million square miles). If that melting momentum carries forward (and nobody knows if it will), 2020 could nab the title of the lowest ice extent year come September — with unknown long-term ramifications for the Arctic and the global climate.
An exceedingly abnormal spring and early summer in Siberia is thought to be largely responsible for 2020’s sudden surge downward. “The ice is opening up quite quickly and dramatically. It’s now at a record low in the Laptev Sea off northern Siberia,” says Walt Meier, a senior research scientist at the National Snow and Ice Data Center (NSIDC).
Published by
Gloria Dickie on 10 July 2020. You can read the full article and images here:
