UNITED NATIONS - The U.N. environment chief has a message for leaders of the world's major industrialized nations: scientists have shown that it pays to preserve forests, coastal waters and marshes. Klaus Toepfer made the case that investing in the environment will go a long way toward meeting U.N. goals to reduce poverty, supply clean drinking water and fight the spread of infectious diseases. "Our motto is environment for development," he said in an interview last week. The Group of Eight meets in Scotland on Wednesday and will address global warming and climate change — and Toepfer expressed hope that...