Just as matters were beginning to improve in 2010 , the Deepwater Horizon oil spill in the Gulf in April 2010 caused massive amounts of oil to come ashore in the wetlands and marshes in Plaquemines Parish and other areas of coastal Louisiana near New Orleans that had been most heavily damaged by Katrina , and the spill will likely reach other states that were also affected by the storm ( the hurricane had caused or exacerbated oil spills on a smaller scale when it hit )
Deepwater Horizon oil spill
Deepwater Horizon oil spill
Hurricane Katrina effects by region