Global environmental challenges
Perhaps 50 million people took part in a global Earth Hour campaign to turn out the lights for an hour at 8 p.m. on Saturday to put attention on global warming, organisers said. Did you?
In Australia, one survey showed that more than half the adults turned off the lights, they said. Bangkok saved 73.3 megawatts, or the equivalent of switching off 2 million fluorescent lights, and organisers said electricity use dropped 8.7 percent in Toronto, Canada.
You don’t have to be a tree-hugging socialist to see that it makes sense to turn off unnecessary lights and electrical appliances, although it obviously only makes sense if you do so all the time and not as a gimmick one Saturday night a year.
You can choose from many reasons - you may be worried about climate change, you may want to end a national addiction to oil with prices at $100 a barrel, or curb a dependence on foreign energy supplies.