Has China already done its part?

Speaking recently at Mr Porritt's Forum for the Future, a Chinese government official described the one child per family policy as having led to "400 million births averted" - which she then converted into the greenhouse gases those extra human inhabitants would have produced, and noted that no other country had done as much to curb climate change.

In this article which I'll blog more fully shortly. Opponents of climate legislation in developed countries criticize China for not doing more to curb its own emissions (although even that claim is becoming less defensible). But China has a formidable moral counterargument: not only were most of the greenhouse gases currently in the atmosphere emitted by rich countries, but China can stake a claim to having done more than and other country to reduce their own emissions.