I've travelled more than 4,500 miles (7,000km) on foot in the polar regions since 2001, I'm the third in history to ski solo to both poles, and I hold the record for the longest ever polar journey on foot.I’ve spoken for nearly 1,000 audiences as a keynote speaker, ranging from TED’s main stage three times to global corporations, start-ups, investment banks, PE funds, academic institutions and non-profits.