Washington, D.C. ? House Speaker Nancy Pelosi is on an overseas trip to embrace an audience and a topic for which President Bush has shown scant affection: “Old Europe” and global warming.

Pelosi, D-Calif., and seven other House members left Saturday for meetings with scientists and politicians in Greenland, Germany and Belgium on ways to reduce emissions of carbon dioxide and other greenhouse gases.

The trip comes shortly before a climate change summit next month involving the leading industrialized nations and during a time of increased debate over what should succeed the Kyoto Protocol, a 1997 international treaty that caps the amount of carbon dioxide that can be emitted from power plants and factories in industrialized countries. It expires in 2012.