Warren MacDonaldWarren Macdonald is an Australian environmentalist, explorer, mountain climber, internationally renowned motivational speaker, and writer. In 2003, he became the first double above-knee amputee to reach the summit of Africa's tallest peak, Mout Kilimanjaro. Later that same year, in a spectacular effort requiring more than 2,800 pull-ups over four days, he climbed America's tallest cliff face, El Capitan. Warren is also the only above-knee amputee to make an ascent of Canada's landmark frozen waterfall, the 600-foot-tall Weeping Wall in Alberta. He is the author of the bestselling book, A Test of Will. Warren lives in Canmore, Alberta, with his partner, Margo Talbot. Read More Read Less