Louisiana is the latest state to redefine natural gas as green energy under a new law the Republican governor signed this week, even though it's a fossil fuel that emits planet-warming greenhouse gases.
Three other states led by Republicans— Indiana, Ohio and Tennessee— have passed similar legislation. In some Democratic-led states, there have been efforts to phase out natural gas. New York and California cities like San Francisco and Berkeley have moved to ban natural gas hookups in new buildings, though some of these policies have been successfully challenged in court.
