Snakes in NY

Boy, it’s all arsenic all the time on this blog!

Chemical & Engineering News: Latest News – In Katrina’s Wake, An Arsenic Threat

An incredible 72 million m³ of debris was created when Hurricane Katrina wreaked havoc in Louisiana and Mississippi in 2005. A survey of this debris now reveals that an estimated 1,740 metric tons of arsenic could leach into groundwater from unlined landfills where the materials are being disposed (Environ. Sci. Technol., DOI: 10.1021/es0622812).

Here’s EPA’s page on arsenic treated wood, and here’s the cheerleader page for same (mmm, industry advocacy websites, delicious!). Note that the EPA is currently working with the manufacturers to “voluntarily” phase out the use of Chromated Copper Arsenate in residential settings. Note that there are several alternatives available, all of them less toxic and equally effective. While this “voluntary” action limits direct exposure for certain types of people, old wood ending up in unlined landfills will overwhelmingly affect people who live near said landfills, namely the poor, and African American. 

Even lined landfills leak eventually, and while other organic matter may degrade before the leaking, arsenic and heavy metals are not going anywhere. Unlined landfills, which is a fancy way of saying hole in the ground where you throw trash in, are completely unacceptable in this day and age in a so called developed country like the US of A. On the other hand, it is fashionable to refer to Louisiana as a third world country, so I guess anything goes for those kinds of people, eh.

It has been posited that the Darfur crisis war genocide is a resource conflict caused by water shortage. If that is true, finding the world’s 10th largest lake (underground) will help.

BBC NEWS | Africa | Water find may end Darfur war

A huge underground lake has been found in Sudans Darfur region, scientists say, which they believe could help end the conflict in the arid region.

Some 1,000 wells will be drilled in the region, with the agreement of Sudans government, the Boston University researchers say.
Analysts say competition for resources between Darfurs Arab nomads and black African farmers is behind the conflict.
More than 200,000 Darfuris have died and 2m fled their homes since 2003.

“Much of the unrest in Darfur and the misery is due to water shortages,” said geologist Farouk El-Baz, director of the Boston University Center for Remote Sensing, according to the AP news agency.

“Access to fresh water is essential for refugee survival, will help the peace process, and provides the necessary resources for the much needed economic development in Darfur,” he said.

I am a technology sceptic sometimes, in the sense that I don’t believe technology fixes everything. But, this seems to be a promising development. If anything, all that activity, well digging, etc. will bring more people into Sudan and that could slow down the murderous Janjaweed.

Hansen, the grandfather of all climate research has an essay today in the open access journal Environmental Research Letters arguing that scientists are not communicating the seriousness of sea level rise. And, it is open access, so, no kidney sale required!

Scientific reticence and sea level rise

I suggest that a `scientific reticence’ is inhibiting the communication of a threat of a potentially large sea level rise. Delay is dangerous because of system inertias that could create a situation with future sea level changes out of our control. I argue for calling together a panel of scientific leaders to hear evidence and issue a prompt plain-written report on current understanding of the sea level change issue.

In this paper, Hansen reviews a number of recent studies that point to positive feedback in ice melting (remember, poitive feedback, good for morale, not good for climate change). Hansen then points out that due to these feedback mechanisms, sea level rise is non-linear. His thesis is that all this information is known to most climate scientists, and to a lot of people who maintain even a cursory interest in the matter.

He finishes with a call to action.

There is, in my opinion, a huge gap between what is understood about human-made global warming and its consequences, and what is known by the people who most need to know, the public and policy makers. The IPCC is doing a commendable job, but we need something more. Given the reticence that the IPCC necessarily exhibits, there need to be supplementary mechanisms. The onus, it seems to me, falls on us scientists as a community.

Important decisions are being made now and in the near future. An example is the large number of new efforts to make liquid fuels from coal, and a resurgence of plans for energy-intensive `cooking’ of tar-shale mountains to squeeze out liquid hydrocarbon fuels. These are just the sort of actions needed to preserve a BAU greenhouse gas path indefinitely. We know enough about the carbon cycle to say that at least of the order of a quarter of the CO2 emitted in burning fossil fuels under a BAU scenario will stay in the air for an eternity, the latter defined practically as more than 500 years. Readily available conventional oil and gas are enough to take atmospheric CO2 to a level of the order of 450 ppm.

In this circumstance it seems vital that we provide the best information we can about the threat to the great ice sheets posed by human-made climate change. This information, and appropriate caveats, should be provided publicly, and in plain language. The best suggestion I can think of is for the National Academy of Sciences to carry out a study, in the tradition of the Charney and Cicerone reports on global warming. I would be glad to hear alternative suggestions.

Do we need another study? As we wait for the National Academy of Sciences to conduct a study on how best to communicate the danger of sea level rise, many more villages in India and Bangladesh will go under the sea. Apparently, the sea cannot wait for the best communication strategies. It communicates the only way it can, directly!!

Technorati Tags: environment, climate change

Mercury is a trace element present in coal/oil that is emitted when coal is combusted for energy – Coal fired power plants account for 40% of all Mercury emissions in the USA.

Is $10 a Year Too Much?

Courtesy the North Carolina Conservation Network
They alerted me to this opinion piece in the News & Observer

North Carolina municipalities are demanding it. Other states are doing it. Now our state must impose maximum available control technology on all coal-burning power plants to reduce mercury emissions by 90 percent as quickly as possible.

Why? Because it is the best way to protect our most precious natural resource, the brainpower of our children.

Against the strong advice of the pediatric and public health communities, in 2005 the U.S. Environmental Protection Agency passed a wimpy rule to reduce mercury emissions from coal-burning power plants 70 percent by 2018. The rule also allows a “cap and trade” process, which may produce local hotspots of mercury pollution.

Later…

Prenatal exposure at levels consistent with consumption of contaminated fish can lead to IQ loss, memory and attention problems, fine motor deficits and developmental delay. These changes are likely permanent.

Estimated costs to consumers are about $4-$10 per year.

This is a no-lose situation. Merury controls are easy to implement, cheap, and requires nothing other than the tweaking of already existing controls. The only reason not do this is knee jerk opposition to even sensible regulation on the part of powerful entities (check out the sweet astroturf on that website!) that have the ear of the federal government.

The NC Conservation Network is running a campaign to toughen the proposed NC law. Please comment if you live in NC.

Mercury regulation is a case where the EPA’s much maligned command and control regulation works better than cap and trade policies because mercury is in the unique position of being both a  local and long range pollutant. Local pollutants have to be controlled at each source, so the Federal government’s proposed legislation is a bad idea and states are trying to do better.