Go green, go broke

Quadrant Online
"One difficulty in discussing green jobs is in knowing exactly what they are. Do I have a green job if I move as a maintenance engineer from a coal power station to a gas power station? I know that I have a green job if I work for a windmill power station but presumably not if I work for a nuclear power station, even though it produces no carbon dioxide emissions. Now a gas power station saves more emissions, when compared with coal, than an array of windmills because it produces so much more energy. So maybe gas is greener than windmills? Perhaps it depends on where I worked last. I have a green job if I move from brown to black coal but not a green job if I move from gas to black coal. I assume if I help produce solar panels and windmill parts or electric cars that I have a green job, but is this still the case if I use energy from brown coal to produce them?"