LONDON (Reuters) - People will have to cut meat from their diets if the world is to stay within safer limits of planet-warming greenhouse gases, nitrate pollution and habitat destruction,...

Nearly 40 years after the first Earth Day, this is irony: The United States has reduced the manmade pollutants that left its waterways dead, discolored and occasionally flammable. But now,...

People should go vegetarian for at least two days a week in order to save the planet, according to a new report. Sir Paul McCartney, Lord Stern and the UN...