When BP's well is 'dead', what problems arise?

Yesterday, BP announced that the oil in the Gulf of Mexico is plugged permanently. We are glad that, the well, as major newspapers put, is 'dead'. However, new topics worth considering arise.

The next major work of BP will be cleaning up. Obviously, cleaning up will cost a huge amount of money, labor, and of course, time. A large number of aquatic animals died of this oil spill, and many of them are still facing huge challenges to survive in polluted water. I came up with a question: Will BP be able to clean up fast enough to avoid a worse lost of biodiversity? These animals cannot wait and their lives are threatened by the difference between real cleaning up and a slogan of cleaning up.

Having learned a lesson from this oil spill, I suppose we shall improve supervision department in order to avoid another oil spill. Strict and mechanical supervison system now seem to be necessary. In addition, we shall improve our moral education. We shall make it clear that profit can turn out to be a disaster for our nature and for other people's lives. Therefore, becoming less greedy is very important if we want to implement sustainability.