Coal not candles should be the symbol of Earth Hour.
It was coal that produced clean electric power which cleared the smog produced by dirty combustion and open fires in big cities like London and Pittsburgh. Much of the third world still suffers choking fumes and smog because they do not have clean electric power and burn wood, cardboard, unwashed coal and cow dung for home heat.
It was coal that saved the forests being felled to fuel the first steam engines and produce charcoal for the first iron smelters.
It was coal that powered the light bulbs and saved the whales being slaughtered for whale oil lamps. (more…)