It isn't every day that a state's largest polluter is honored. It helps when the polluter -- and its buddies -- helped found and advise the group giving the award. The Maryland-based Wildlife Habitat Council gave biodiversity conservation awards to 21 companies, including the Lafarge cement plant in Ravena, New York. The award was for Lafarge's 150-acre Deer Mountain Nature Preserve. The honor was not publicized until the company came under fire for mercury contamination near a local high school.