Oil From BP Spill Has Officially Entered the Food Chain
Researchers in Louisiana have found carbon from the BP Deepwater Horizon oil spill in the feathers and digestive tracts of seaside sparrows, proving for the first time that oil from the disastrous 2010 spill has entered the food chain.
Seaside sparrows show signs of BP Deepwater Horizon oil.
The study, published today in Environmental Research Letters, was conducted by scientists from Louisiana State University and Austin Peay State University in Tennessee. They found oil carbon signatures consistent with the Deepwater Horizon event in each of 10 birds tested.
These marsh-dwelling sparrows inhabit an area known to have been contaminated by the spill. Sediments from the site also tested positive for oil with the same fingerprints as that found in the tested birds.
The Deepwater Horizon accident followed the blowout of the wellhead at the Macondo oil rig and lasted for 87 days. Eleven workers died and 4.9 million barrels of oil flowed into the Gulf of Mexico. It became the largest oil spill in U.S. history and was called the "worst environmental disaster the U.S. has faced" by White House Energy Adviser Carol Browner.
Oil sheens continued to be seen as much as three years after the event. The source of many were never discovered, but the containment dome failed and had to be plugged in 2012.
The immediate effects of such major spills are readily apparent. Oiled birds, dead fish and beaches covered in crude-oil sludge are often the first, horrific results. Disasters like Exxon Valdez, Deepwater Horizon and the Santa Barbara oil spill damage critical wildlife habitat and destroy fisheries.
Longer-term, the pernicious oil enters the food chain.
The first signs of Deepwater Horizon oil were found in blue crab larvae in 2010. Oil likely entered the food chain through zooplankton. A 2012 study found traces of oil in zooplankton impacted by the BP oil spill.
BP oil spill led to baby dolphin deaths and diseases along the Gulf Coast.Truth Wire
By November 2010, nearly 7,000 dead animals had been collected. They included more than 6,100 birds along with 69 sea turtles, 100 dolphins and other mammals. A 2016 Oceana report concluded that 600,000 to 800,000 birds had died from the spill in the six years since.
"The things that live on the bottom are very important for different reasons," Montagna explained. "They serve as food for higher trophic (food chain) levels, particularly for fish and other organisms that come and feed on the bottom sediments."
"Fish can consume phytoplankton poisoned by oil, fish eat fish and carry on the absorption of toxins, marine mammals and birds eat fish and could potentially carry on toxic properties to other predators," wrote wildlife biologist Jenna Bardroff in One Green Planet.
Seaside sparrows mostly eat insects, but also consume small crabs and the seeds of cordgrass and saltbush. The small birds can be prey to larger shore birds, snakes or mammals. In previous research, this same population of seaside sparrows was shown to have suffered reproduction problems in the years immediately following the oil spill.
There have been 11,700 reported oil spills in the Gulf of Mexico since Deepwater Horizon. Gulf oil producers lose one gallon of oil for every 20,000 they produce—and they produce 20 billion gallons of crude in the Gulf each year.
A drilling platform owned by Taylor Energy was damaged in 2004 by Hurricane Ivan and has been leaking oil ever since.
In May, Shell leaked 90,000 gallons of oil into the Gulf. The spill was reported by a helicopter pilot who was flying in the area. Monitoring the leak, SkyTruth called the concept of oil spill cleanup "nothing more than a convenient fantasy." They found that oil spill response vessels often arrive late and fail to fully recover the lost oil.
"Our government is indulging in a troubling fantasy that is eagerly abetted by the oil industry and pro-drilling politicians, dressing up deepwater offshore drilling as a safe operation so they can continue to rubber-stamp permit applications that contain laughable oil-spill response plans," SkyTruth concluded.
U.S. Environmental Protection Agency (EPA) administrator Scott Pruitt met with Dow Chemical CEO Andrew Liveris before deciding to reverse an earlier EPA decision to ban the company's toxic and widely used pesticide, chlorpyrifos.
According to records obtained by the Associated Press, the EPA boss met with Liveris for about 30 minutes at a Houston hotel on March 9. Later that month, Pruitt announced that he would no longer pursue a ban on chlorpyrifos from being used on food, ignoring his agency's own review that even small amounts of the pesticide could impact fetus and infant brain development.
Native communities and environmental justice advocates in Louisiana opened a new resistance camp Saturday to oppose the proposed Bayou Bridge Pipeline project. Called L'eau Est La Vie, or Water is Life, the camp will consist of floating indigenous art structures on rafts and constant prayer ceremonies during its first two weeks.
Continuing its march toward elimination of key Clean Water Act protections, the U.S. Environmental Protection Agency (EPA) on Tuesday issued a formal notice of withdrawal of the Obama administration's rule defining which waters can be protected against pollution and destruction under federal law.
The U.S. Environmental Protection Agency (EPA) is not doing enough to prevent weed resistance to the herbicide glyphosate (Roundup) says a new report from the EPA's Inspector General's Office, which draws in part on a report from the agbiotech company, Pioneer: Weed Management in the Era of Glyphosate Resistance.
When it comes to the latest wind turbine technologies, size matters. A group of six institutions and universities is designing an offshore wind turbine that will stand 500 meters in height. That's taller than the Eiffel Tower and the Empire State Building.
The research team, led by researchers at the University of Virginia, believes that its wind turbine concept will produce 50 megawatts of peak power, or about 10 times more powerful than conventional wind turbines.
Natural gas is often considered the cleanest fossil fuel, but could it actually be dirtier than coal?
Watch as New York Times reporter Mark Bittman, in the above Year's of Living Dangerously video, investigates how much methane is leaking at fracking wells. Find out how the natural gas industry's claims compare to what scientists are reporting.
See what happens when Gaby Petron, an atmospheric scientist with NOAA, converts her van into a mobile methane detector and sets out across northeastern Colorado for two years, taking thousands of readings to uncover the truth.
Adrian Grenier: 'We Must Usher in a New Era of Compassion Through Forward Thinking Environmental Programs'
Adrian Grenier was named UN Goodwill Ambassador earlier this month. The Hollywood actor, best known for his iconic role of A-list movie star Vincent Chase in the HBO smash hit and film Entourage, will advocate for drastically reducing single-use plastic and protection of marine species, and encourage his followers to make conscious consumer choices to reduce their environmental footprint, according to the UN Environment announcement.
"Together we must usher in a new era of compassion and carefulness through forward thinking environmental programs to drive measurable change," Grenier said. "I am personally committed to creating ways in which the global community can come together to help solve our most critical climate crises through routine, collective action.
"The more we connect to nature in our daily lives, the more dedicated we will become to our individual commitments. Together, I believe we can go further, faster in our race to achieve the UN Sustainable Development Goals by 2030."
Watch the video above to learn more.