Heard about white and blue collared jobs now how about green collared ones? According to a research carried by ICM for environmental consultant Royal Haskoning , government pressure on going green has lead to an increase in demand for workers in environmental related roles and industries in Britain.In the survey of 500 business leaders , more than a third opined that their green workforce would increase by 10% in the coming years and also revealed their concern over the difficulty in finding the right people.For instance Coyle Personnel , which has a significant construction and property recruitment operation has 18 vacancies for environment related roles in the public sector.