Earth Hour Comes To America

When Earth Hour started in 2007 there was Sydney, Australia. Last year there were cities all over the world, with a conspicuous big white hole over the United States, which had a tenth of the rate of participation of its neighbour to the north. Was it too foreign? Not invented here? Too tied up in the political tenor of the times? But this year, it is different. There still is a big hole in the middle, but the growth of interest appears to be huge. So in case you are learning how to do this for the first time, here is a roundup of tips from last year:...