You mean this: http://www.sctainfo.org/data.htm#detailed_data
PG&E was monitoring CO2 in 1990. They (California) have been on a green kick for years. They are working towards lower CO2 levels in most urban areas. Much of this work is through green energy projects like hydroelectric, solar, and wind power projects. They are also looking at alternative tranportation methods for more reductions. I don't see this as a bad thing. I have never been for all green energy projects, as I believe some do more harm than good (ie current biofuels), but we do need to work for better solutions to our energy needs.
I agree that alternative energy is needed, but there is a dark side to the green movement and agenda 21, like building a home on private land, regulations on small businesses, carbon taxes to name some.