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link to USGS study, comments

That Gulf Restoration 50% number comes from this USGS Report:
http://pubs.usgs.gov/of/2000/of00-418/

noting a pattern of subsiding Interior wetlands associated with the oil and gas pipeline canals. the oil and gas pipelines themselves account for 11% of loss, and this pattern 25%. there's a squishier category -"Land Loss due to Altered Hydrology --Multiple Causes", which is 22% of total land loss pre-1990. You'll see scientists and other coordinator class types hedging, and using a more conservative figure like 30% of loss.

But my point is that much of the news media and older folks will talk about land loss as "erosion," when the majority of the loss is interior ponding, away from boat traffic and much other wave action, largely because of pipeline and other canals. I've heard this referred to in other places as "canal builders effect."

2) oil and gas PR (America's Wetlands) would rather the US Gov't pay for the entire restoration plan. The PR response to GRN's campaign for legal liability was to blame the nutria. many decision maker types see this crisis as a way to get a hand up on oil and gas, and make them pay for their share of coastal restoration--Jindal has called for BP to pay for the reestablishment of the Chandeleur Islands. So yes, this game is being played same as in 1930.

3) Shell, in relation to the other giants (BP/Amoco, Exxon, etc) has more "exposure" to the wetlands issue, given that they own many of the pipelines that are becoming more and more vulnerable to wave action, because of the land loss they have spurred.

4) I am wondering about how clamping down on oil production in the Gulf, should it ever happen, will affect production by these companies in other places, like the Niger Delta, which suffers many of the same ills to worse effect.

thanks for your article

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