Just when every major city in North America, including Toronto, is trying to conserve, NY City has a mandate to convert all its yellow cabs to hybrid and San Francisco is cutting greenhouse gas by 25% by 2020,we hear CN Tower, the world's tallest building today (553 m), is getting a face lift which involves being outfitted with LED lights that shoot up the elevator shaft over the "bubble" and straight to the mast. Just how much watts per day are we talking about? But, wait! Apparently the LEDs are high tech --they consume 60% less than when the tower was last fully lit in the 1990s. I think it's okay then?
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