Public Citizen and 111 other safety and labor groups recently called on the Occupational Safety and Health Administration (OSHA) to create a federal standard for protecting workers from heat stress, which they say is aggravated by global warming. Whether or not OSHA chooses to respond to this call by proposing a standard some time in the future, it still oblgates employers to develop programs that adhere to OSHA-recommended practices. "OSHA has an obligation to prevent future