Sydney started it, and now London is getting into the act. The Lights Out London campaign is inviting londoners to turn off their lights for one hour, between 9p.m. and 10p.m. on the 21st of June (the Summer Solstice). If successful, this will become the largest climate change event ever recorded whose only request is to switch off.
All of UK should join in as well. My laptop will be off for a change.
Read more via Inhabitat.