From the safety of the political sidelines, former Vice President Al Gore is venturing into a touchy topic, presenting his holistic view of how to curb the buildup of greenhouse gases warming the planet. Besides improving technology to reduce fossil fuel emissions, he is advocating "educating and empowering girls and women." "That's the most powerful leveraging factor," Gore said in a speech Monday in New York. "When that happens, then the population begins to stabilize and societies begin to make better choices." Although not entirely spelled out in the speech, Gore's thinking goes this way: If women are confident their...