Sentences with phrase «natural mud flats»
The third is environmental: the natural mud flats and salt marshes of the coast are havens for tens of thousands of birds and other wildlife, but they are being squeezed between rising sea levels and sea walls.
https://www.newscientist.com/ Not exact matches
One is geomorphological: erosion provides the sediment that builds up the natural coastal defences of other areas of coastline, by forming marshes or beaches, shingle bars or mud flats.