The best outcome for this catastrophe is for the general public to realize that the use of petroleum of is simpy unsustainable. Same for coal. The price is just too high.
How much of our nation can we trash before we realize that we are defecating in our own kitchen?
The alternatives for energy are already competative with coal, even with considering the external prices associated with the burning of coal. When you consider the cost to our land, to our children poisened with the mercury and lead emmissions from coal, the increase in asthma associated with coal, the alternatives are far cheaper than coal.
Petroleum can be replaced with electric vehicles, and vehicles that burn such products as bacterial, or algal, biodiesel.
When the full scope of the catastrophe in the Gulf becomes apparent, I believe the American Public will demand these changes.