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…

Colorful icons representing nature, sustainable living, and renewable energy with text "Earth Day 2026"

The first Earth Day in 1970 ignited a movement to stop polluting our planet. Today, our scientists and experts are tackling the most pressing challenges to achieve real-world impact. This Earth Day, 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.

  • 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…