After three years of annual cleanup expeditions on Mount Everest, alpinist Ken Noguchi is focusing this summer on Japan's highest peak.

The 29-year-old mountaineer, who at age 25 became the youngest person to scale the highest peaks of the world's seven continents, said he aims to get Mount Fuji added to the UNESCO World Heritage List.

A government panel considering sites to recommend to UNESCO did not nominate the country's symbolic peak this year. One reason given was the problems of garbage and excrement on the 3,776-meter mountain.