The Hill: House Speaker Nancy Pelosi (D-Calif.) is leading a group of lawmakers on a trip to China this week to press for global cooperation on efforts to stem climate change. Pelosi said before her trip that decisions need to be made now to help prevent global warming. “The urgency of the global climate crisis requires that critical choices be made now that are bold and based on the clearest understanding of how to achieve our goals of preserving the planet and protecting the health of …