It was great to meet see a number of familiar faces again, WWF and others, once I had been through the long queue for registration at the Bella Center yesterday. There was some optimism around and even the EU managed to sound upbeat after winning a Fossil of the Day yesterday for their apparent lack of ambition.
At their press conference they said a 2 degree deal was still in their sights, and called on the US and China to do more so that the EU could deliver on its promise to up their target to 30 per cent. They have even started talking about keeping the temperature rise below 1.5 degrees, something more than half the UN countries now support.
They also told us to expect much more when the ministers get down to work.
Another person it was great to see was John Elliot from the Borders. I first met him 9 years ago when he came to help build a sandbag dyke around the UN climate conference centre in the Hague. Now 75 he came with Friends of the Earth Scotland to join the huge march through Copenhagen to the Bella Center. He was his usual cheery self despite having had no sleep because his coach was held at the German border for three and a half hours in the night.
The march from central Copenhagen was great, with 100,000 people ending up at a torch-lit rally. We had the usual environmental and development groups as well as colourful Tibetans, militant vegetarians, trades unions, faith groups, several inflatable planets, a giant snowman and of course the rather naughty anarchists.
Together with other marches around the world yesterday and last week's events in Glasgow, Belfast and London, there can be no doubt that world leaders will know that people expect real results when they turn up here at the end of the week.
Finally, a big thank you to Sam, heading back now by train and ferry, for doing an excellent job of making sense of his first UN climate conference.