Jeffrey Sachs , director of Columbia University 's Earth Institute , was more optimistic , if only slightly so .
Jeffrey Sachs /business/person/company Columbia University
NNP NNP , NN IN NNP NNP POS NNP NNP , VBD RBR JJ , IN RB RB RB .
Jeffrey Sachs
PERSON
Columbia University
ORGANIZATION
/business/person/company