In May 2007 Los Angeles adopted an Action Plan to Lead the Nation In Fighting Global Warming. The plan includes a CO2 emissions reduction target of 35 percent by 2030 of 1990 levels. The approach Los Angeles is taking is one of simultaneously addressing future energy and water security by investing in decentralised renewable energy and decreasing per-capita water use. Additional areas include waste management, greening of buildings and open space and addressing emissions from the transport sector. The emphasis has so far been on the supply, rather than the demand, side.