He is a former a feature writer at Bloomberg News, where he reported on people and places from Afghanistan to Congo and the City of London. His journalism attempts to explain and make sense of inequality in the world. He has told stories of presidents and impoverished farmers, steel tycoons and steel workers, renewable energy entrepreneurs and oil industry executives, bankers and maids–people who earn millions of dollars a month and people who live on a dollar a day. The stories have won awards and accolades, including a citation from the Overseas Press Club of America. Clark holds a Masters degree in International Relations from the London School of Economics.