State of the Planet

News from the Columbia Climate School

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The 7 Billion Challenge

The rapid rise in the world’s population to 7 billion — from 6 billion a dozen years ago — poses enormous challenges. In this video, Earth Institute Director Jeffrey D. Sachs talks about the stresses our population already puts on the planet, and the mission of the institute to tackle those problems and promote sustainable development.

Young boy drinking at camp for displaced persons in Afghanistan
A young resident of Maslakh Camp for internally displaced persons, in Afghanistan. UN Photo/Eskinder Debebe

Sachs will join a panel of experts on Oct. 17 to talk about these challenges. Joel E. Cohen, a professor at both Columbia and Rockefeller universities, will talk on “7 billion: Good news and bad news (no joke).” Matthew Bishop, the U.S. business editor and New York bureau chief for the Economist, will moderate the panel. The event runs from 5-7 p.m. in the Roone Arledge Auditorium, Lerner Hall, Columbia, at Broadway between 114th and 115th streets.

For details to register, or to watch the webcast, go here.

Banner featuring a collage of extreme heat images.

Recent record-breaking heat waves have affected communities across the world. The Extreme Heat Workshop will bring together researchers and practitioners to advance the state of knowledge, identify community needs, and develop a framework for evaluating risks with a focus on climate justice. Register by June 15

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