State of the Planet

News from the Columbia Climate School

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  • The Tools to Build a Green Economy

    The Tools to Build a Green Economy

    What role does public policy play in encouraging and facilitating the green economy? What are the policy tools and incentives that steer green investment effectively?

  • Sustainability Policy Is Taking Hold in China

    I left China encouraged by the widespread receptivity to the theory and practice of sustainability, but aware of the huge challenge that lies ahead. As we flew from Guiyang to Beijing for the return flight home, I looked down and saw a countryside dotted with scores of windmills. The transition from a coal-based economy to…

  • EPA’s Upcoming Carbon Rules: A Primer

    EPA’s Upcoming Carbon Rules: A Primer

    On Monday, June 2, President Obama will announce proposed federal rules aimed at curbing carbon emissions from existing U.S. power plants–possibly a landmark in U.S. climate policy. It is uncertain how far the rule will go, and the announcement is being closely watched around the world.

  • A Faustian Choice: Population and Environment

    A Faustian Choice: Population and Environment

    Population growth is a key contributor to the pressures pushing at our planetary boundaries. In Rio+20 discussions, implications of population growth have become shrouded in platitudes. It is important that discussions on planetary limits clearly lay out possible strategies that can alleviate these pressures.

Photo of the Earth from space with the text "Lamont at AGU25" on top.

AGU25, the premier Earth and space science conference, takes place December 15-19, 2025 in New Orleans, Louisiana. This year’s theme—Where Science Connects Us—puts in focus how science depends on connection, from the lab to the field to the ballot box. Once again, Lamont-Doherty Earth Observatory and Columbia Climate School scientists, experts, students, and educators are playing an active role, sharing our research and helping shape the future of our planet. #AGU25 Learn More

  • The Tools to Build a Green Economy

    The Tools to Build a Green Economy

    What role does public policy play in encouraging and facilitating the green economy? What are the policy tools and incentives that steer green investment effectively?

  • Sustainability Policy Is Taking Hold in China

    I left China encouraged by the widespread receptivity to the theory and practice of sustainability, but aware of the huge challenge that lies ahead. As we flew from Guiyang to Beijing for the return flight home, I looked down and saw a countryside dotted with scores of windmills. The transition from a coal-based economy to…

  • EPA’s Upcoming Carbon Rules: A Primer

    EPA’s Upcoming Carbon Rules: A Primer

    On Monday, June 2, President Obama will announce proposed federal rules aimed at curbing carbon emissions from existing U.S. power plants–possibly a landmark in U.S. climate policy. It is uncertain how far the rule will go, and the announcement is being closely watched around the world.

  • A Faustian Choice: Population and Environment

    A Faustian Choice: Population and Environment

    Population growth is a key contributor to the pressures pushing at our planetary boundaries. In Rio+20 discussions, implications of population growth have become shrouded in platitudes. It is important that discussions on planetary limits clearly lay out possible strategies that can alleviate these pressures.