CNN: When it comes to successful electioneering, Bill Clinton’s unofficial 1992 campaign mantra for the U.S. presidency, “It’s the economy, stupid” often holds true, but what about the environment? Same but different: The two presidential candidates share some common positions on dealing with climate change U.S. Democrat Barack Obama called climate change “one of the biggest challenges of our time” but with just weeks to go until the election and the economy and current financial …