140 private jets and 1200 limos....

After all the talk, the talks begin in earnest today, with a carbon footprint big enough to squash a small Pacific island.

By boat, bus, plane and train (but mainly by plane), 20,000 delegates, campaigners and journalists are arriving in Copenhagen in advance of "the most difficult talks ever embarked on by humanity". More than 1,200 limousines will grace the city's streets as 98 world leaders talk about how to save the planet. Most of the stretched vehicles have been driven hundreds of miles from Germany and Sweden. Last week, France ordered an extra 42 of them. Only five of the limos are hybrid - the rest are petrol and diesel.

*Copenhagen airport expects 140 extra private jets when the talks peak at the end of next week, a number so far beyond its capacity that they will be forced to drop off their VIPs before relocating to other regional airports to park, and then return to pick the passengers up.