Next 10 of San Francisco has published an analysis of California’s “core green economy”. While employment and business growth varies across the 15 green industry segments measured, there was overall employment growth of 1% in green manufacturing in 2009-2010, despite the recession. For the period 1995 to 2010, job creation in the clean energy/materials manufacturing sector increased by 53% while jobs in the rest of the manufacturing sector decreased by 18%.

http://next10.org/sites/next10.huang.radicaldesigns.org/files/MSOG_2012_M2.pdf