Since photos can be more powerful than words in documenting a disaster, we've picked out a few:

Oil from the massive spill is seen on the surface of the water on May 5, 2010, off the coast of Louisiana. (Joe Raedle/Getty Images)

Oil burns during a controlled fire May 6, 2010, in the Gulf of Mexico. (Justin E. Stumberg/U.S. Navy via Getty Images)

A dead turtle is seen on the beach as a Louisiana National Guard vehicle passes by on May 10, 2010, in Lafourche Parish, La. (Joe Raedle/Getty Images)

The Boston Globe has more.