Heavy snowfall and deadly blizzards lashed Europe Thursday, forcing Geneva's busy airport to close, as the region shivered in a deep freeze that has gripped countries from the far north to Mediterranean beaches in the south.
Marshes, streams and lakes lie alongside many of the roads and highways that zigzag across North America. Plants and animals inhabit these water bodies and can be exposed to many of the substances we put on those roads, including road salt.
Take a minute and think about famous ski destinations around the world. Maybe your mind turns to Aspen in Colorado or Whistler in British Columbia. Possibly France’s famed Chamonix Valley came to mind or perhaps you imagined Switzerland’s Zermatt, which sits under the shadow of the Matterhorn. How about Egypt?