Wall Street Journal: Climate czar Carol Browner said she wants Congress to establish a broad U.S. greenhouse-gas policy before global climate-change talks near the end of the year. Speaking at a conference Monday at the Massachusetts Institute of Technology, Ms. Browner said she is confident Congress can move forward on a climate-change policy, citing hearings scheduled for next week on sweeping legislation proposed by Rep. Henry Waxman (D., Calif.) and Rep. Ed Markey (D., Mass). Ms. Browner didn’t …