Only the most experienced climbers attempt ascents, and for every four who crawl to its peak, one dies.
And then there is winter. Fourteen of earth’s mountains exceed 8,000 meters (26,246 feet), and climbers have reached the peak of 13 in winter. K2 is the forbidding exception. Ten Polish climbers hope to make history by reaching the summit next winter.--NYT
An excellent feature on mountaineering from the NY Times.