State of the Planet

News from the Columbia Climate School

UN Summit on Climate Change

  • Climate News Roundup – Week of 9/19

    Denver to Barcelona: Global Cities and Greenhouse Gas Emissions, ScienceDaily ACS’ Environmental Science & Technology is publishing a new study in October identifying which cities are producing the greatest levels of greenhouse gases. Denver was number one on the list, followed by Los Angeles, Toronto, Cape Town, and Bangkok. Researchers identified high electricity and heating…

Banner with images representing environmental issues and text "You Asked: Our Scientists and Experts Answer Your Burning Questions."

You Asked invites you to share your most pressing questions about climate, science, and sustainability. Lamont-Doherty Earth Observatory and Columbia Climate School experts will respond with clear, evidence-based answers. Pose your questions and story ideas!

  • Climate News Roundup – Week of 9/19

    Denver to Barcelona: Global Cities and Greenhouse Gas Emissions, ScienceDaily ACS’ Environmental Science & Technology is publishing a new study in October identifying which cities are producing the greatest levels of greenhouse gases. Denver was number one on the list, followed by Los Angeles, Toronto, Cape Town, and Bangkok. Researchers identified high electricity and heating…