20 Yrs Later- Alaskan Beaches Remain Polluted by Oil From Exxon Valdez Spill

The Exxon Valdez oil spill killed tens of thousands of animals during the initial days of the disaster alone. Photo courtesy of Nature’s Crusaders.

On Thursday evening, March 23, 1989, the Exxon Valdez, a very large crude carrier and one of Exxon’s then two largest oil tankers, left the Port of Valdez for Long Beach, Calif.

“The shipped passed through the Valdez Narrows and the pilot disembarked. Captain Joe Hazelwood ordered the vessel to procced outside the normal traffic separation lanes in order to avoid ice which had calved from the Columbia Glacier and was reported near the shipping lanes.

“The captain indicated to the mate where he wanted the vessel to turn to bring it back into the shipping lanes and then left the bridge. The ship did not make the turn prescribed by the captain, and shortly after midnight on Friday, March 24, 1989, struck Bligh Reef and fetched up hard aground.

“The grounding punctured the single-hulled vessel, resulting in the rupture of 11 of the vessel’s crude oil tanks. As a result, over 11 million gallons of crude oil were released into the pristine environment of Prince William Sound.”

This is how Craig Tillery, deputy attorney general for the Alaska Department of Law, described the events of those days to the Alaska Forum on the Environment during his keynote presentation, last February, when he brought attendees up to speed on the continuing effects of the disaster and restoration efforts.

As part of that address, he talked about the fact that about 10 years ago the Exxon Valdez Oil Spill Trustee Council noticed that “oil remained in greater quantities and at greater levels of toxicity than anyone that anticipated.”

Recent research findings from Temple University say that “it is estimated that nearly 20,000 gallons of oil remain in the beaches.”

Late last month, Nature Geoscience published the results of a three-year study by researchers from Temple University and China University of Geoscience which examined the effects of oil still remaining from the spill.

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Cancerous House Dust Across America Linked to Pavement Sealcoats

Coal-tar-based sealcoat being applied. Photo by Peter Van Metre.

We all have memories as children of being told to wipe our feet before coming in. Well, it might be more important than ever to follow that advice with a new study about what we may be tracking in.

Coal-tar-based sealcoal - that black, shiny stuff sprayed or painted on many parking lots, driveways, and playgrounds - has been linked to elevated concentrations of the contaminants polycyclic aromatic hydrocarbons (PAHs) in house dust.

Houses and apartments next to areas treated with this type of sealcoat contained dust with much higher concentrations of PAHs than those next to areas treated with other types sealcoats, according to the new study published by Environmental Science and Technology.

Asphalt-based sealcoat being applied. Photo by Guardtop.In contrast, “asphalt-based products have concentrations of PAHs that are 1,000 times less than what are in coal-tar-based products,” said Dr. Barbara Mahler, one of the authors of the study and a research hydrologist with the water resources division of the U.S. Geological Survey.

The concern is that “PAHs are highly potent carcinogens than can produce tumors in some organism at even a single dose. Mammals can absorb PAHs by inhalation, dermal contact or ingestion,” according to the U.S. Environmental Protection Agency.

“Fish exposed to PAH contamination have exhibited fin erosion, liver abnormalities, cataracts, and immune system impairments leading to increased susceptibility to disease,” adds the agency.

Working to assess water quality across the nation, “what caught our attention was there was one group of contaminants that was increasing, and that was the PAHs, which were primarily increasing in urban lakes in the U.S.,” said Mahler.

She went on to say that, “What we also found was that the PAH concentrations in the dust on these parking lots were extremely high, much higher than we had seen from any other PAH sources, including things like motor oil.”

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Relentless Tiger Poaching Brings Activists and INTERPOL Together

Photo courtesy of Brian Scott.

On the Chinese lunar calendar 2010 is the Year of the Tiger, which commences on February 14, 2010 and ends on February 2, 2011. The tiger is the third sign in the Chinese Zodiac cycle, symbolizing fighting courage, which was admired by the ancient Chinese as the sign that keeps away the three main tragedies of a household — fire, thieves, and ghosts.

Things are currently a little different in real life. The tiger is not fairing so well against both the destruction of its habitat and poachers.

In the early 1900s, tigers roamed throughout Asia and numbered over 100,000, according to the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES).

Its current estimates indicate that less than 3,500 of these remain as a whole in the wild. Tigers today are pouched for their skins, but almost every part of their bodies can be used for either decorative or traditional medicinal purposes.

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Scientists Discover Select Bug to Pit Against UK Invasive Plant Species

Japanese Knotweed photo courtesy of Y2U.co.uk.

Most of us don’t like bugs. And if your like me, if you see one in the house, your immediate reaction is to find a slipper to kill it. Sorry to the bug lovers!

In nature though, as with all other creatures, they serve a particular useful function. Researchers at the British University of Leicester have found an insect to combat the Japanese Knotweed, a widespread invasive plant species that was inadvertently let loose upon the country a little over a century ago.

Most people in the UK are very familiar with the problem, but to get everyone else up to speed, this knotweed causes the country problems, which according to the CABI (a nonprofit with expertise in agriculture and the environment) include the following:

• Infrastructure Damage: pushing through asphalt, building foundations, and concrete retaining walls.
• Recreational Nuisance: impeding access for anglers and boaters.
• Impeding Biodiversity: crowding out native vegetation and limiting animal species diversity. CABI describes it as having “the biodiversity of concrete.”

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Oregon Loggers Outraged Over Secretary’s Decision to Cut the WOPR

Odell lake sits along the crest of the Oregon Cascades, near Wilamette Pass. Courtesy of Flickr.com.

Not everyone is cheering Interior Secretary Ken Salazar’s decision to “withdraw” the Western Oregon Plan Revisions, which rezoned 2.6 million acres of federal public forests in Oregon as part of conserving the habitat of the northern spotted owl. The rezoning- now gone- was also a boom for the region’s logging industry.

Jim Geisinger, executive vice president of Associated Oregon Loggers, said, “We really believe what the secretary did was a breach of public trust. That Bureau of Land Management plan was five years in the making and complied with all of the requirements of the Administrative Procedures Act as well as the National Environmental Policy Act.

“There was extensive public input and for the secretary to just withdraw the record of decision arbitrarily really is unprecedented. It is unfortunate that the secretary wouldn’t even allow the plan to be presented to a court for a decision.”

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