世界各地熄灯响应"地球一小时"

Europe's best known landmarks - including the Eiffel Tower, Big Ben and Rome's Colosseum - fell dark Saturday, following Sydney's Opera House and Beijing's Forbidden City in joininThe sun goes down on Auckland as it approaches Earth Hour, March 27, 2010. Earth Hour, when everyone is asked to turn off lights for an hour from 8.30 p.m. local time, is a show of support for tougher action to confront climate change. Viaduct Harbour is seen in the foreground, the Sky Tower at right. [Agencies]g a global clima