This New Scientist article is just bloody brilliant!
"All these methods of pricing carbon permit the creation of a carbon market that will allow us to pollute beyond a catastrophic tipping point. In other words, they require us to put a price on the final "killing" tonne of CO2 which, once emitted, tips the balance and triggers runaway global warming. How can we set such a price? It's like saying, how much is civilisation worth? Or, if you needed a camel to cross a desert alive, what is a fair value for the straw that breaks its back?"
"Even if you could price the killing tonne, it is a transaction that should never be allowed. Economics becomes redundant if it can rationalise an exchange that sells the future of humankind."
"Governments are there to compensate for market failure but seem to have a blind spot about carbon markets. They could counteract the impact of low carbon prices by spending on renewable energy as part of their economic stimulus packages, yet they have not done so. The UK, for example, has spent nearly 20 per cent of its GDP to prop up the financial sector, but just 0.0083 per cent in new money on green economic stimulus."