In article ,
"Dan Luke" wrote:

[snip]
Marshes are not wasteland; they serve important hydrological and
biological purposes that make them worth preserving. If we do not learn
this, we will continue to create these intractable, slow motion
catastrophes.

I caught part of a Discovery Channel show about the marshes around
New Orleans - very interesting stuff about silt/sand/"filtering", etc.
Fighting Mother Nature isn't a simple thing at all.

--
Bob Noel
no one likes an educated mule