The United States Bureau of Labor Statistics reports that green jobs in 2011 totaled 3,401, 279.
http://www.bls.gov/news.release/ggqcew.nr0.htm. Green jobs grew by 157,746 and reached 2.6% of all jobs.
More impressively, though only 2.6% of total jobs, green jobs amounted to about 9% of the 1.8 million jobs created in 2011.
The BLS definition of green jobs is broad and includes, for example, those employed at public transit agencies. Most green jobs, however, are in the private sector, where 2.515 million were counted, while 886,000 were public sector positions.
Green jobs matter today, and their fast growth rate means that they will matter more tomorrow.