Scientists used to call these things the canary in the mine. What they say now is, The canary is dead. We are at the top of Niagara Falls, Tina, in a canoe. There is an image for your viewers. We got here by drifting, but we cannot turn around for a lazy paddle back when you finally stop pissing around. We have arrived at the point of an audible roar. Does it strike you as a good time to debate the existence of the falls?”