State of Michigan v. United States Army Corps of En

WOOD, Chief Judge.

Meddling with Mother Nature is not always a good idea, as the ongoing saga of the Asian carp illustrates. The unfortunate confluence of two interventions — the linkage of the Mississippi River system to the Great Lakes and the effort to control weeds in southern aquatic farms by importing Asian carp, a voracious non-native fish — has led to a situation in which two particular species of carp have overwhelmed the Mississippi River and its tributaries and threaten to migrate into the Great Lakes. Once the carp reach one of the Lakes, they have reached all of them, thanks in…