Grist: Like climate change, California`s cap-and-trade program is an evolving and growing beast. Since its official launch last year, power plants, cement producers, glass manufacturers, and some other heavy industries operating in the Golden State have been required to reduce carbon emissions and pay for the privilege of polluting the atmosphere with heat-trapping gases. In January of 2015, the program is due to expand to affect suppliers of natural gas and motor fuels, helping to further slow global warming...