Doonesbury by Garry Trudeau for August 07, 2011
Mike: I wonder what kind of roof Bernie has... and I didn't used to wonder that at all! Lemme run an idea by you, Bern. Bernie: Go. Mike: Okay, so there are all these "cool roof" initiatives to paint black asphalt roofs white so they won't absorb so much heat in summer... the problem is that the lower air conditioning costs are offset by increased heating bills in winter. So here's my question: how hard would it be to develop a roof coating that changes color with the seasons? Bernie: Hmm... that's actually a very complex technical problem. Mike: Yeah, I figured as much. Or someone woulda done it it. Mike: Oh, well... Bernie: Solved it. Shoot me a business plan in the morning.