CTV: Global climate change may be driving the factors behind the partial closure of one of Canada’s Arctic parks, says Parks Canada. Much of Auyuittuq National Park on Baffin Island was cut off to visitors this week after flash flooding in the region. Parks officials continue to worry that erosion linked to warming weather may erode the walls of earth forming some of the park’s lakes. That could flood large portions of the park. The park and surrounding communities have …