State of the Planet

News from the Columbia Climate School

air pollution9

  • Bottom Up or Top Down? Another Way to Look at an Air Quality Problem

    Bottom Up or Top Down? Another Way to Look at an Air Quality Problem

    While not all countries have the financial wherewithal and capacity to deploy ground-based instruments for air-quality monitoring, and for some countries monitoring information is not available to the public, for example, through health advisories, another way exists to assess air pollution levels: through satellites.

  • 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…

Overhead view of Columbia campus with text Columbia Climate School Class Day 2026: Congratulations Graduates

Congratulations to our Columbia Climate School Class of 2026 and all of our 2026 Columbia University graduates! Learn more about our May 15 Climate School Class Day celebration. 💙 #Columbia2026 #ColumbiaClimate2026

  • Bottom Up or Top Down? Another Way to Look at an Air Quality Problem

    Bottom Up or Top Down? Another Way to Look at an Air Quality Problem

    While not all countries have the financial wherewithal and capacity to deploy ground-based instruments for air-quality monitoring, and for some countries monitoring information is not available to the public, for example, through health advisories, another way exists to assess air pollution levels: through satellites.

  • 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…