Schwarzenegger to CO2 – “I’ll Be Back”

BBC NEWS | Science/Nature | Warming set to ‘devastate’ coral

Bleaching in 1998 occurred in all reef regions of the world; 16% of the world’s reefs were lost in that one year, alone. But the western Indian Ocean suffered most because of an interaction between El Nino and another periodic climate phenomenon called the Indian Ocean dipole.

In the seven years since, the damaged reefs have been largely unable to reseed. Many simply collapsed into rubble and became covered in algae.

This collapse removed food and shelter from predators for a large and diverse amount of marine life. The survey showed four fish species could already be locally extinct, and six species are at critically low levels.

The survey also revealed that the diversity of fish species in the heavily impacted sites had plummeted by about 50%.

Well, this is bad news, there has been earlier indication that coral reefs were not necessarily doomed by higher ocean temperatures because this would just cause a shift in the coral species to varieties thriving at higher temperatures/exhibiting adaptive behaviors. Obviously, this did not happen fast enough to regenerate the reef.

Environment North Carolina is co-sponsoring 2 events featuring Dr. James Hansen, director of NASA’s Goddard Institute and the nation’s foremost climate expert. In the past year, Dr. Hansen has lead the charge in calling for action on global warming, stating, “We have at most ten years-not ten years to decide upon action, but ten years to alter fundamentally the trajectory of global greenhouse gas emissions.”

RSVP-NASA’s Dr. James Hansen coming to North Carolina – Environment North Carolina

Well, if I’d been keeping normal bogging hours, this would have been up last week, anyway… Full report on the talk later tonight/tomorrow. It figures to be exciting, always great to see visionary scientists in person.

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Tags: climatechange, Hansen

Check out this story from the January 26, 2006 LA Times.

In a rare move to phase out a widely used industrial compound, the Environmental Protection Agency announced Wednesday that it was asking all U.S. companies to virtually eliminate public exposure to a toxic chemical used to make Teflon cookware and thousands of other products.

EPA’s system of regulating chemicals leads to some really perverse incentives. The burden of proof shifts to the EPA to prove beyond reasonable doubt that a chemical has definite harmful effects on humans at ambient exposure levels. So the preferred route has been for the EPA to “suggest” to the companies to participate in a voluntary phaseout.

No one knows how the chemical is getting into people’s bloodstreams and in the bodies of polar bears and other animals. Although it is used in production of cookware, it is not found in the cookware, clothing and other fluoropolymers after manufacture.

Well, not quite. This from a paper published in the Environmental Science and Technology on January the 25th.

Polyfluorinated telomer alcohols and sulfonamides are classes of compounds recently identified as precursor molecules to the perfluorinated acids detected in the environment. Despite the detection and quantification of these volatile compounds in the atmosphere, their sources remain unknown. Both classes of compounds are used in the synthesis of various fluorosurfactants and incorporated in polymeric materials used extensively in the carpet, textile, and paper industries. This study has identified the presence of residual unbound fluoro telomer alcohols (FTOHs) in varying chain lengths (C6-C14) in several commercially available and industrially applied polymeric and surfactant materials…

This study suggests that elimination or reduction of these residual alcohols from all marketed fluorinated polymers and fluorosurfactants is key in reducing the prevalence of perfluorinated acids formed in the environment.

Well, that explains it a little better, this article from ES&T provides a nice executive summary like context.

An emerging theory that explains how PFOA (perfluorooctanoic acid) and other PFCAs (perfluorocarboxylic acids) have contaminated the Arctic has received a boost from a new modeling study published in this issue of ES&T (pp 924–930). The theory contends that Arctic contamination is due to atmospheric transport and breakdown of fluorotelomer alcohols, chemicals that are used in products that include stain protectors, microwave-popcorn bags, fast-food wrappers, polishes, and paints.

Well, it sure looks like we need to focus much more on the PFOA precursors rather than on the PFOA itself. Dupont and 3M are not going to be happy about that!