Climate change hits Winter Olympic preparation

Saas-Fee, Switzerland • The athletes’ half-hour commute in the Swiss Alps — up two gondolas, then through a tunnel in the world’s highest underground train to a glacier at 11,000 feet — served up daily grim reminders that global warming is threatening their line of work.After exiting the train, they squelched through a field of grayish mud to reach shrinking snowfields scarred by new crevasses. Occasionally, they heard the sharp roars of glacial ice breaking off in m