Activists are targeting 300 Esso gas stations in the U.K. tomorrow for boycotts, urging drivers to fill up their tanks elsewhere because Esso’s parent company, the oil giant ExxonMobil, opposes the Kyoto treaty on climate change. Groups like Greenpeace and Friends of the Earth are helping to lead the StopEsso campaign, which has the support of such high-profile celebs as Bianca Jagger and Annie Lennox The campaign’s coordinator, Lorne Stockman, predicted that the Saturday boycotts would be the largest global warming protest ever held in the country. He added, “It will be a very fluffy, peaceful, family-oriented demonstration.”