sudden increase in deaths http://www.bbc.co.uk/news/science-environment-13123036 one-year anniversary the BBC sudden increase in deaths one-year anniversary caused disastrous environmental damage A BBC report last week still shrouded in uncertainty BP oil spill: The environmental impact one year on (BBC): Eco-impact of the BP oil spill? 20 April 2011 http://www.bbc.co.uk/news/science-environment-13123036 environmentally disastrous 2010 Deepwater Horizon oil spill http://www.bbc.co.uk/news/science-environment-13123036 environmentally disastrous 2010 Deepwater Horizon oil spill caused disastrous environmental damage BBC BBC News BP Oil Spill: The Environmental Impact One Year On BP oil spill: The environmental impact one year on the BP oil spill, BBC BBC BP oil spill: The environmental impact one year on A BBC report last week