Mississippi river delta marshes have hit a tipping point, study finds
Northwest Turtle Bay Marsh Creation, Louisiana. Photo source: ©© United States Fish and Wildlife Services (USFWS)
New research finds that marshes in the Mississippi River Delta have hit a tipping point and will likely drown this century due to sea level rise.
The study found that at rates of relative sea level rise — meaning the combination of rising water and ground subsidence — of 6 to 9 millimeters a year, the Gulf’s marshes would disappear underwater within a half-century…