There is no reason why econonmic growth can't be accomplished with cleaner technology. I think developing hydrogen is a lot more attractive than relying on brown coal, though we have enough coal to last centuries and the tech to covert it to gas has been around since the 20's. A lot of the 3rd world pollution comes from multinational co.'s that don't need to bother with labor or enviormental problems, although we usually pay for their tax breaks.
If you check,you'll probably find they are companys that left US for less stringent environmental rules than those IMPOSED in the US?