The UN SDSN Leadership Council is led by the director of the Earth Institute at what university?
Jeffrey Sachs Jeffrey David Sachs ( ; born November 5, 1954) is an American economist and director of the Earth Institute at Columbia University, where he holds the title of University Professor, the highest rank Columbia bestows on its faculty. He is known as one of the world's leading experts on economic development and the fight against poverty.
Lee Kwang-hee Lee Kwang-hee (born 1960) is a South Korean physicist. Since 2007, he has served as the Director of the Research Institute for Solar and Sustainable Energies at Gwangju Institute of Science and Technology (GIST).