Jeffrey Sachs is an American economist and director of The Earth Institute at Columbia University, where he holds the title of University Professor. He is known as one of the world’s leading experts on economic development and the fight against poverty. He is special adviser to former United Nations Secretary-General Ban Ki-Moon on the Millennium Development Goals. From 2002 to 2006, he was director of the United Nations Millennium Project’s work on the Millennium Development Goals, eight internationally sanctioned objectives to reduce extreme poverty, hunger, and disease by the year 2015. He is director of the UN Sustainable Development Solutions Network. He was named one of Time Magazine’s “100 Most Influential People in the World” in 2004 and 2005, and was awarded the Blue Planet Prize in 2015 for his contributions to solving global environmental problems.