You will love this fron the NYT: the BLS definition of green jobs – “jobs in businesses that produce goods and provide services that benefit the environment or conserve natural resources”.
http://green.blogs.nytimes.com/2012/03/22/a-tally-of-green-jobs/
I saw that in the article you posted too. That’s could be defined so broadly it’s meaningless. When I was a carpenter I “conserved natural resources” by not making many mistakes. Albeit my motivation was so my boss wouldn’t put a boot up my rear end. I’m really green now. No job so my vehicles just sit in the driveway. Even better I pay no taxes to support this Gangster Government.