Agence France-Presse: The 20,000 or so participants in the international climate change conference here begin Day 2 of their proceedings with clarity about just one thing. This is still going to be hard. For all of the clock-is-ticking rhetoric, for all the pleas to stop "restating well-known positions,’ for all the gauzy good feeling that comes with the coming together of old friends and foes, the difficulties of Day 1 showed that negotiators will need to work overtime to get even a treaty-lite …