Kiwiblog has done a worthy job and written out a list of all the things that the environmentalists want to ban - a total of 85 items.
Some of these are hugely costly, this one in particular:
31 - Ban coal mining
We have at least 2000 years worth of coal in the ground, worth perhaps 1000 billion dollars. That little item could mean the difference between riches and ruin.
We urgently need to mine as much coal as we possibly can, and soon, before the world loses interest in it.
UPDATE: I have to agree with Whaleoil on this. Given the mess the environmentalists have got this country into, it is an idea worthy of serious consideration.
I think it might be simply easier to ban the Greens.