WASHINGTON (AP) - The head of a U.N. climate-change panel says tariffs in a House-passed bill could undermine U.S. efforts to gain support for a new global warming treaty.
The United Nations official heads the Intergovernmental Panel on Climate Change, which shared the Nobel Peace Prize with former Vice President Al Gore in 2007.
He tells The Associated Press that congressional lawmakers should remove the tariff provision, which would impose a "border adjustment" on goods from countries that don't limit the gases linked to global warming.
He says developing countries could in turn tax U.S. exports, which are probably some of the most carbon-intensive in the world.
The comments come as the Senate starts work on the bill. Lawmakers are hoping to pass the measure before a December meeting aimed at finalizing a new global warming treaty.