Less snow means more problems for winter sports

Ski resorts in Europe's Alps are confronting a snow problem. Solutions won't just fall from the sky.

As a child, our family would go to the Ardennes in central France for the winter break.  My memories are of us skiing or sledding in the snow, which usually lay thick on the ground.

The Ardennes range between 350 and 500 metres above sea level on average but, sadly,