Chesapeake Bay has been having trouble for a long time (decades) with nitrogen rich runoff from farms and suburbs. It causes algea to grow, which kills the fish and shellfish in the Bay. The recent flooding is going to have a huge impact on the Bay. The amount of shit (literally) that has contaminated the Bay this week is remarkable.
Here's a picture from before the flooding. Taken August 23, 2011. Followed by a picture taken yesterday. (
Thanks, NASA!)