Michele Norris talks to Nicolai Calabria, 13, who climbed Mount Kilimanjaro this summer. He climbed the 19,000-foot mountain on crutches, braving arctic temperatures.
Calabria was born without a right leg; in his climb, he relied on his upper-body strength to battle the mountain.
A seventh-grader from Concord, Mass., Calabria says he undertook the climb to raise money for the charity The Free Wheelchair Mission.
Donations stemming from his trek will provide more than 1,000 wheelchairs to the people of Tanzania.