State of the Planet

News from the Columbia Climate School

assessment of environmental health

  • Does Pollution Regulation Kill Jobs? Lessons for China from the U.S.

    Does Pollution Regulation Kill Jobs? Lessons for China from the U.S.

    The problem of air pollution in China continues to reach new heights. To combat the problem in any real way stringent regulation is needed. A new paper from Columbia University’s Earth Institute finds that this can be done without hurting job creation.

  • Photo Essay: Studying Fracking’s Effects, Up Close and Personal

    Photo Essay: Studying Fracking’s Effects, Up Close and Personal

    Ten years ago, hydraulic fracturing barely existed. Today 45,000 fracked wells produce natural gas, providing energy for millions of homes and businesses, and nearly a quarter of the nation’s electricity. But scientists are far behind in understanding how this boom affects people near wells. Geochemists Beizhan Yan and James Ross of Columbia University’s Lamont-Doherty Earth…

  • 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.

Collage of Turkiye beach scene and Columbia University Campus with text: UN Climate Change Conference COP31, Antalya, Turkiye, Nov 9-20, 2026

COP31, the 2026 United Nations Climate Change Conference, aims to advance dialogue, strengthen consensus, and accelerate climate action on a global scale. From November 9–20, 2026 in Antalya, Türkiye, heads of state, ministers, scientists, business leaders, and civil society will gather to advance efforts in emission targets, climate finance, and adaptation and resilience. Once again, our experts, students, and global thought leaders from Columbia Climate School and across Columbia University are contributing to key events, sharing insights, and helping shape the dialogue toward ambitious, science-based solutions. Learn More

  • Does Pollution Regulation Kill Jobs? Lessons for China from the U.S.

    Does Pollution Regulation Kill Jobs? Lessons for China from the U.S.

    The problem of air pollution in China continues to reach new heights. To combat the problem in any real way stringent regulation is needed. A new paper from Columbia University’s Earth Institute finds that this can be done without hurting job creation.

  • Photo Essay: Studying Fracking’s Effects, Up Close and Personal

    Photo Essay: Studying Fracking’s Effects, Up Close and Personal

    Ten years ago, hydraulic fracturing barely existed. Today 45,000 fracked wells produce natural gas, providing energy for millions of homes and businesses, and nearly a quarter of the nation’s electricity. But scientists are far behind in understanding how this boom affects people near wells. Geochemists Beizhan Yan and James Ross of Columbia University’s Lamont-Doherty Earth…

  • 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.