World Champion extreme free-skier and founder of The Save Our Snow Foundation, American Alison Gannett is walking 200 miles from Big Ben in London to Brusssels railway station with snow skis on her back, in the first stage of her trip to the conference.
In an email to United Nations Environment Programme (UNEP) staff she wrote, "'I am doing this to help raise awareness on the importance of saving our snow, both for the fun sports we love such as skiing, but more importantly that half the world depends on snow and ice melt for drinking and irrigation water."
She is walking with Roz Savage, a British ocean rower and environmental campaigner. From Brussels, both walkers will join the Climate Express train which is taking more than 400 climate change negotiators, campaigners and high-profile personalities to Copenhagen.
Meanwhile, last week, a small team of environmental experts, NGOs and journalists left Kyoto, Japan on an epic 9,000 kilometre-long journey from Kyoto to Copenhagen, most of it by train.
The group boarded the Trans-Siberian Express in Vladivostok, Russia on Saturday and will document the impacts of climate change, raise awareness of low-carbon transport solutions, and gather signatures for the UN led Seal the Deal! Climate Petition.
Led by the International Union of Railways in partnership with UNEP, WWF and Russian Railways, the journey through Russia will cover Irkutsk, Novosibirsk, Yekaterinburg, Novgorod, ending up in Moscow. A member of UNEP's Moscow office, Ludmila Khorosheva, will join the train in Novosibirsk on Thursday.