State of the Planet

News from the Columbia Climate School

air pollution9

  • Data’s Power to Spur Environmental Progress

    Data’s Power to Spur Environmental Progress

    In January, 132 countries received their environmental report cards. The Environmental Performance Index has goaded leaders into action by letting them see their countries’ strengths and weaknesses compared to other countries.

  • Cuts in Non-CO2 Pollutants May Slow Climate Change

    Reducing Soot and Methane Would Bring Fast Results, Says Study

  • Study Sees Little Dust Risk For Subway Workers

    Compact Air Samplers Track Pollution in New York Tunnels

  • Global Environmental Scorecard Gives U.S. Low Rank

    Jan. 23, Davos, Switzerland – A new international ranking of environmental performance puts Switzerland at the top—and the United States 39th, last among the Group of 8 industrialized countries. The ranking, the 2008 Environmental Performance Index, was produced by a team from Yale University and the Columbia University Earth Institute’s Center for International Earth Science…

Earth Month Graphic Collage: "Our Power, Our Planet - April 2025"

The first Earth Day in 1970 ignited a movement to stop polluting our planet. This Earth Month, join us in our commitment to realizing a just and sustainable future for our planet. Visit our Earth Day website for ideas, resources, and inspiration.

  • Data’s Power to Spur Environmental Progress

    Data’s Power to Spur Environmental Progress

    In January, 132 countries received their environmental report cards. The Environmental Performance Index has goaded leaders into action by letting them see their countries’ strengths and weaknesses compared to other countries.

  • Cuts in Non-CO2 Pollutants May Slow Climate Change

    Reducing Soot and Methane Would Bring Fast Results, Says Study

  • Study Sees Little Dust Risk For Subway Workers

    Compact Air Samplers Track Pollution in New York Tunnels

  • Global Environmental Scorecard Gives U.S. Low Rank

    Jan. 23, Davos, Switzerland – A new international ranking of environmental performance puts Switzerland at the top—and the United States 39th, last among the Group of 8 industrialized countries. The ranking, the 2008 Environmental Performance Index, was produced by a team from Yale University and the Columbia University Earth Institute’s Center for International Earth Science…