Talks about the changes in Narragansett Bay over the last 30 years from sediment that denitrifies to that which is nitrogen fixing:
http://www.thenakedscientists.com/HTML/articles/article/howclimatechangeischokingmarineecosystems/
http://www.thenakedscientists.com/HTML/articles/article/howclimatechangeischokingmarineecosystems/