China was willing to assist a western economic suicide, but was not interested in participating. The Independent explains how China killed the agreement by refusing to compromise:
The day's most remarkable feature was a direct and unprecedented personal clash between the US President, Barack Obama, and the Chinese Premier, Wen Jiabao, in which Mr Wen took deep offence at Mr Obama's insistence – in public – that the Chinese should allow their promised cuts in greenhouse gases to be internationally verified. When the President, in an unyielding speech, said that without international verification "any agreement would be empty words on a page", that was too much for Mr Wen. He left the conference in Copenhagen's Bella Centre, returned to his hotel in the city, and responded with a direct snub of his own – he sent low-level delegates to take his place in the talks.
A high-level source told The Independent that the US President was amazed when he found who he was negotiating with, and clearly regarded Mr Wen's absence as a major diplomatic insult. He snapped: "It would be nice to negotiate with somebody who can make political decisions"...
In the meantime, as physicists have recently determined, the earth will continue to warm and cool in response to changes in solar activity and cosmic ray inflow, with CO2 playing a minor role, if any.
Perhaps President Obama would have found the sun to be a more tractable negotiation partner than China. In fact, the sun is actually cooperating -- its geomagnetic emissions are at an all-time low right now, as predicted by an excellent 2005 study (Sunspots may Vanish by 2015) by two scientists, William Livingston and Matthew Penn, at the National Solar Observatory in Arizona.
Physicists have found close correlations between cosmic ray influx and global temperatures and they know that solar activity blocks cosmic ray influx. The current hypothesis is that when solar activity is low, more cosmic rays penetrate the earth's atmosphere, causing more low-level clouds to form, reflecting more sunlight back into outerspace, and thus cooling the Earth.