A new look at the history of water quality in the Chesapeake Bay sheds light on how the estuary has responded to nutrient reduction efforts and why improvements have remained a major challenge. University of Maryland Center for Environmental Science researchers looked at the Bay’s historic response to efforts to reduce nutrients to minimize dead zones—areas with too little oxygen to support marine life—and found there is a pollution threshold after which it takes twice the effort to make a change.
Click here for original story, New insights into why improvements to Chesapeake Bay remain a challenge
Source: Phys.org