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Green Collar has two definitions in todays world.
1. A job relating to warfare.
2. A job relating to environmentally friendly work
the first is more commonly used
1. Bill works for a PMC, therefore he is a green collar worker.

2. John serves in the Air Force, making him one of the green collar workers in the U.S.

3. Steve now works for EcoSafe, a company who makes environmentally safe light bulbs, and he joined the green collar ranks.
by Sam Harding April 23, 2008
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