Shrinkage predicted for boreal forest.

In addition to climate change, logging and wildfires threaten the forest (a stretch in Alberta, Canada, burned by wildfires in May is shown at left). CLIMATE One of nature's woody behemoths - the North American snow forest, spanning much of subarctic Alaska and Canada - may soon shrink. Scientists have suggested that this boreal forest might shift northward as the climate warms, helping maintain its expansive breadth. [Extracted from the article]