earth hour

This Saturday evening, March 31, in Sydney Australia at least, many of us will be marking "Earth Hour" by turning off our lights between 7:30 pm and 8:30 pm, as a sign of our commitment to reducing glonal warming.

In a way it's only a token, but the public and political recognition of the reality and consequences of global warming has jumped in the past year, no doubt due to Al Gore as much as anything else, so Earth Hour helps keep the issue in the public mind.