Some researchers agree with SoCalGas that substituting cleaner fuels for gas would be easier and cheaper than swapping out gas for electricity. They include Jack Brouwer, a UC Irvine engineering professor, who has led a project to inject small amounts of hydrogen into the university’s gas pipelines. “Our policy goals cannot be met without hydrogen, is my view,” Brouwer said in an interview last month. [Subscription required, you can request an electronic copy of the article by sending an email to communications@uci.edu.]