Tag: oil spills

Study says old, weathered oil from spills is even more toxic to fish than fresh crude

Scientists still studying Deepwater Horizon spill impacts

Oil from BP's failed Deepwater Horizon drill rig and the Macondo well spread across the ocean in May 2010. PHOTO COURTESY NOAA.
Oil from BP’s failed Deepwater Horizon drill rig and the Macondo well spread across the Gulf of Mexico in May 2010. Photo courtesy NOAA.

Staff Report

It’s been six years since BP’s Deepwater Horizon drilling rig in the Gulf of Mexico failed disastrously, but scientists are still learning about how the oil affected ocean species and ecosystems.

In findings from new study released this week, researchers from the University of California, Riverside and the University of Miami Rosenstiel School of Marine and Atmospheric Science reported that old, weathered oil from the spill is even more toxic than fresh crude oil. Ultraviolet light changes changes the chemistry of the oil, the scientists said, further threatening numerous commercially and ecologically important fishes.

The Deepwater Horizon oil disaster was the worst on U.S. history. More than 3 million barrels of oil spilled into the Gulf, contaminating spawning habitats for many fishes. The oil also killed deep sea corals and had a devastating effect on dolphin reproduction. Continue reading “Study says old, weathered oil from spills is even more toxic to fish than fresh crude”

Small oil spills can add up to big impacts for sea birds

Report says more monitoring of wildlife needed on offshore oil drilling rigs

Oil in the Gulf of Mexico. PHOTO COURTESY U.S. COAST GUARD.
Oil spills have a devastating impact on sea life,, there’s not enough monitoring to track environmental degradation. Photo via U.S. Coast Guard.
This is an Oiled Thick-billed Murre, Cripple Cove (near Cape Race), Newfoundland November 28, 2004. Credit Photo by Ian L. Jones
This is an oiled thick-billed murre, Cripple Cove (near Cape Race), Newfoundland November 28, 2004. Photo by Ian L. Jones.

Staff Report

It only takes exposure to a teaspoon full of oil to kill some seabirds, but oil drillers off the coast of Canada are failing to adequately monitor small, persistent spills that can lead to chronic pollution and population-level impacts, according to a new study by scientists with York University.

The research published in the international journal, Marine Pollution Bulletin, looked at how offshore oil operators monitored and responded to small spills (less than 1,000 litres) for three production projects off the coast of Newfoundland and Labrador. It came after authorities failed to respond to three high-profile environmental assessments by Environment Canada that requested impacts on seabirds be monitored following small spills. Continue reading “Small oil spills can add up to big impacts for sea birds”

Study suggests oil spill impacts linger for decades

The Exxon Valdez oil spill likely affected fish populations for decades. Photo via NOAA.

Exxon Valdez oil spill fingered in decline of herring, salmon populations

Staff Report

FRISCO — Long-term research that followed up on the impacts of the 1989 Exxon Valdez oil spill suggests that fish and other marine organisms may feel the effects of low levels of toxic crude oil for much longer than previously believed.

The new study shows that embryonic salmon and herring exposed to very low levels of crude oil can develop hidden heart defects that compromise their later survival. The findings, published this week in the online journal Scientific Reports suggest that the delayed effects of the spill may have been important contributors to the decline of some fish populations. Continue reading “Study suggests oil spill impacts linger for decades”

Environment: Coastal communities in southeastern U.S. not exactly enthusiastic about offshore oil and gas drilling

Where there is drilling, there are oil spills. Photo via U.S. Coast Guard.

Offshore wind energy projects touted as better alternative

Staff Report

FRISCO — Cities along the southeastern coast of the U.S. are lining up to oppose offshore fossil fuel exploitation. Earlier this week, the  Morehead City Council unanimously passed a resolution opposing seismic airgun blasting and offshore drilling.

The council’s resolution expresses concerns that federal plans for offshore oil and gas exploration and development threaten coastal communities, economies, fisheries and marine mammals.

The city was reacting to the Obama administration’s proposed plans to opening a large swath of the Atlantic Ocean, from Virginia to Georgia, to offshore drilling. Meanwhile, seismic airgun blasting, a process used to search for oil and gas deposits deep below the ocean floor, is continuing to move forward in an area twice the size of California, stretching all the way from Delaware to Florida. Continue reading “Environment: Coastal communities in southeastern U.S. not exactly enthusiastic about offshore oil and gas drilling”

Environment: Feds face pipeline safety lawsuit

Workers try to contain an oil spill from a ruptured pipeline in the Yellowstone River in January, 2015.

Lacksadaiscal enforcement is a recipe for disaster

Staff Report

FRISCO — After a series of disastrous pipeline breaks, the National Wildlife Federation says it’s time to hold the federal government accountable for its failure to enforce basic requirements like regular inspections and update safety response plans for pipeline accidents.

This week, the nonprofit group said it will sue the  U.S Department of Transportation in an action that has nationwide implications, since nearly every pipeline that crosses a navigable water is operating illegally. In its formal notice of intent to sue, the National Wildlife Federation is asking the Department of Transportation to issue regulations for oil pipelines in water, and require every owner and operator of an oil pipeline in a navigable water to submit a safety response plan that needs to be approved. Continue reading “Environment: Feds face pipeline safety lawsuit”

Gulf of Mexico dolphin die-off linked with exposure to oil from 2010 Deepwater Horizon disaster

‘Dolphins are particularly susceptible to inhalation effects due to their large lungs, deep breaths and extended breath hold times’

A bottlenose dolphin in the Gulf of Mexico. @bberwyn photo.

Staff Report

FRISCO — The 2010 Deepwater Horizon oil disaster in the Gulf of Mexico led directly to the worst dolphin  die-off on record in the northern Gulf of Mexico, scientists reported last week.

The new study published in the online journal PLOS ONE, linked the dolphin deaths with exposure to oil from BP’s failed Macondo Well. The scientists found that dead bottlenose dolphins stranded in the northern Gulf of Mexico since the start of the Deepwater Horizon oil spill have lung and adrenal lesions consistent with petroleum product exposure. Continue reading “Gulf of Mexico dolphin die-off linked with exposure to oil from 2010 Deepwater Horizon disaster”

Shell gets conditional OK for Arctic offshore drilling

Conservation groups say Arctic oil disaster nearly inevitable

Is Shell Arctic-ready?

By Bob Berwyn

FRISCO — In a decision heralding all but certain disaster for Arctic ecosystems, the federal government today approved the basic outlines of Shell’s proposed multi-year offshore oil exploration plan in the Chukchi Sea.

Using two vessels, the giant oil company wants to drill up to six wells in an area known as the Burger Prospect, more than 140-feet deep, about  70 miles northwest of the village of Wainwright.

The approval came just two years after the Department of Interior found that Shell tried to rush into its offshore drilling program without being “fully prepared in terms of fabricating and testing certain critical systems and establishing the scope of its operational plans.” Continue reading “Shell gets conditional OK for Arctic offshore drilling”