Corporate public-relations experts whose companies are supporting the 2008 Beijing Olympics may be preparing for the biggest battle of their lives, as activists gear up to attack China on everything from its human-rights record at home and abroad to the quality of its toys and air. Activist groups ranging from Reporters without Borders to Olympic Dream for Darfur are broadening their attention from attacking China's government to targeting Olympic sponsors.

What’s the best response? Avoid the attack by focusing on “Green.” Several Olympic sponsors are focusing on environmental projects in China, which have become a growing concern there. Coka Cola is playing up its water-conservation efforts on the Yangtze River and putting natural-refrigerant coolers and vending machines at all Olympic sites. Since March, Volkswagen has been planting thousands of trees in Inner Mongolia. GE is touting its role selling eco friendly products such as solar-power and water-filtration systems for the Olympic venues.

Will the strategy work? Stay tuned.