Would rigs 20 miles offshore really be an environmental catastrophe?
For what it is worth, there are rigs closer than that off of Louisiana's coast and I don't remember seeing gobs of black goop on the beach at Grande Isle when I went fishing there in the 1980s and 1990s. There was plenty of junk that looked like it probably had been pitched off the platforms-bottles, cups, etc, however, that stuff could have been thrown into the Mississippi River by somebody in St Louis.
To me, the problem isn't so much day to day rig operation. It's the concept of putting more rigs into one of the most active cyclone areas on the planet. They get rigs that that broke lose and came ashore on Dauphin Island and the shore of Mobile Bay during Hurricane Katrina and other storms have had significant impacts on other oil field areas.



