Key is going

“Prime Minister John Key has done a U-turn and confirmed his intention to fly to Copenhagen for the United Nations Climate Change conference.”
I am pleased, and surprised, and pleased, for all the reasons discussed here (including comments).
Congratulations are due to the Greenpeace crew who really drove this campaign – although there was certainly some high-level pressure as well, e.g. at the Commonwealth Heads of Govt talks, the grass-roots definitely got the message out enough that Key heard.