A cursory look at a map of the Gulf Stream shows that the oil is not just going to cover the beaches in the Gulf, it will spread to the Atlantic coasts up through North Carolina then on to the North Sea and Iceland. And beyond the damage to the beaches, sea life and water supplies, the Gulf stream has a very distinct chemistry, composition (marine organisms), density, temperature. What happens if the oil and the dispersants and all the toxic compounds they create actually change the nature of the Gulf Stream? No one can rule out potential changes including changes in the path of the Gulf Stream, and even small changes could have huge impacts. Europe, including England, is not an icy wasteland due to the warming from the Gulf Stream.