Worldwide bee population decline has motivated recent action by governments and activists. On April 29, the European Union announced a two-year suspension of three neonicotinoid insecticides, or neonics," that pose "high acute risk" to bees. The ban was demanded in a large campaign by Greenpeace, Friends of the Earth, and other environmental groups, along with more than 2.5 million people who signed a petition in support. On July 16, the EU added fipronil, another pesticide linked to bee kills, to the list of restricted chemicals. The province of Ontario has recently banned some pesticides. Oregon temporarily banned dinotefuran, a neonic, after 50,000 bumblebees died when ornamental trees were sprayed with the chemical. And corporate accountability group SumOfUs is raising funds to send beekeepers to a conference for garden-store owners. They'll ask the store owners not to stock pesticides that kill bees. Other bee protectors are using the legal system. Four beekeepers, along with the Center for Food Safety, Beyond Pesticides, Pesticide Action Network, the Sierra Club, and the Center for Environmental Health, filed a lawsuit on March 21. They're charging the EPA with failing to protect honeybees from clothianidin and thiamethoxam, two of the neonics included in the EU ban. "America's beekeepers cannot survive for long with the toxic environment EPA has supported," said Steve Ellis, one of the beekeepers bringing the lawsuit. "It's time for the EPA to recognize the value of bees to our food system and agricultural economy."