That's the beauty of the proposal of Sen. Sherrod Brown, D-Ohio. A new levy on goods made in ways or in nations that ignore greenhouse gas caps doesn't merely discourage American companies from moving jobs to countries whose domestic laws tolerate pollution. It also economically advantages green products/companies/nations, raises revenues for clean energy innovation and -- most important -- appreciates the borderless nature of the crisis. "Carbon dioxide emissions expand if a company closes down in Toledo, Ohio, and moves to Shanghai, where the emissions standards are weaker, " Brown says.