Over the past few years, millions of people have either moved to Salt Lake City, Utah, or visited to hike and ride the region’s world-class trails. But now the Great Salt Lake is drying up, releasing chemicals so toxic that it may soon be unsafe to hike or bike at all.  The Great Salt Lake [...]

Each year, more than a million annual visitors come to the Rideau Canal Skateway in Ottawa, Canada, to trace figure-eights and pirouettes on the rink’s glassy, 4.8-mile surface. But this year, temperatures may be too warm to open the rink at all.  The Rideau Canal Skateway, which is a section of canal that connects Ottawa [...]