Winnipeg Free Press: As nations meet to discuss the impacts of climate change and promote their interests in the lead-up to the negotiations in Copenhagen in December, we hope that one element of the big picture does not get lost — the critical role of the Arctic region. An international agreement reached in Copenhagen that does not safeguard the Arctic will be mere window-dressing. The Arctic ice and tundra act as a vital cooling system for our planet. Without white ice to reflect heat and light, the …