Taken as a whole, the article says, "We don't really know what would happen." And while absolute certainty seems unlikely in an area as complex as ecology, it

Taken as a whole, the article says, "We don't really know what would happen." And while absolute certainty seems unlikely in an area as complex as ecology, it also seems foolhardy at best to act on the kind of (understandably) flimsy knowledge we now possess.