Northern Canada's Tibbitt-Contwoyto "diamond road," a winter road first built in 1982 and said to be the world's most lucrative ice road as it services several diamond mines, is expected to be among the routes that suffer, according to the researchers. Much of the roughly 300 mile road runs atop frozen lakes. By 2020 the road is projected to lose 17 percent of its up to 10-week operating season.
For more, see Reuters