Nearly 500,000 people either signed a petition or voted online to express support for a low-carbon lifestyle in a campaign supported by the World Wildlife Fund in China, the People's Daily reported today.

A total of 130,000 college students from more than 100 universities in 16 cities joined the campaign. Some 60,000 Beijing residents signed, and another 300,000 netizens voted online, according to reports.

The campaign, named "Vote Earth," is designed to show popular support for fighting climate change before a major international conference on global warming that will be held in Copenhagen in December.