During the ongoing climate change discussions, Sen. Sherrod Brown, D-Ohio., has emerged as the Senate's point man on the industrial Midwest. Brown, who is widely considered to be a liberal, is pushing Senate Democrats to require that importers pay a carbon dioxide fee for products made in countries that don't control their greenhouse gases. He also wants Congress to provide free allowances under the cap-and-trade program to companies that need to transition to using cleaner-burning fuels and manufacturing green-energy products.

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