Now in her seventh term, Rep. Jane Harman (D-Venice) represents California's 36th Congressional District. Jane Harman. Even sunny skies and pleasant ocean breezes over much of our state can't mask the fact that Californians breathe some of the most polluted air in the nation. California is the world's 12th largest source of carbon dioxide, the chief heat-trapping gas that causes global warming. As dirty as our air is, we are taking the lead nati ...