Rather than wait for Penny Wong, we thought we’d jump the gun with our own Paper on the options for addressing climate change. The key thing to bear in mind with all this stuff is what we are actually trying to achieve. Yes, yes, we’re trying to do something about the greenhouse effect, but what, specifically, and how? Answering that question properly leads into hotly-contested debates about economic and administrative efficiency, where tiny details can have vast and unforeseen real-world consequences.