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  1. Environmental Science

Securing the Future of Glacier Monitoring in a Warming World – State of the Planet

Susitna Glacier, Alaska. Acquired in 2009 by the ASTER instrument on NASA’s Terra Satellite. (Jesse Allen & Robert Simmon/NASA Earth Observatory) The Glacier Mass Balance Intercomparison Exercise, or GlaMBIE—a European Space Agency project launched in 2022—aims to strengthen global glacier monitoring by combining field observations with satellite-based data from remote sensing technologies. By bringing together researchers […]
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  1. Environmental Science

COP30 Is Over. But for the World’s Most Vulnerable, the Crisis Is Ongoing. – State of the Planet

COP30 has ended, the negotiations have closed and global leaders have returned home. But for millions of people on the frontlines of the climate crisis, nothing has ended. The floodwaters have not receded. The crops destroyed have not returned. The next storm has not paused to wait for the next summit. In South Sudan, where […]
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  1. Environmental Science

Will Glacier Melt Lead to Increased Seismic Activity in Mountain Regions? – State of the Planet

A recent study from Earth and Planetary Science Letters is the first to directly link earthquakes to climate change-induced glacial melt. Scientists analyzed 15 years of seismic activity in the Grandes Jorasses—a peak that is part of the Mont Blanc massif between Italy and France—to better understand this association. This massif is one of the […]
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  1. Environmental Science

Fight Food Waste This Holiday Season – State of the Planet

Credit: Karola G/Pexels The holiday season is marked by folks gathering to celebrate traditions and connect over special meals. Yet it can be difficult to feel festive when considering the environmental impact of food waste. According to Feeding America, a nonprofit that has over 200 food banks in the U.S., 38 percent of all food […]
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  1. Environmental Science

The July 4 Floods in Texas Weren’t a One-Off. They Were a Warning. – State of the Planet

The flooded Guadalupe River near Kerrville, Texas, on July 5, 2025. Photo: US Coast Guard On July 14 this past summer, I pulled up to the Kerrville Kroc Corps Community Center, dodging puddles and sinkholes from a recent thunderstorm in a town where the last thing needed was more rain. I was there as a volunteer […]
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  1. Environmental Science

Humans Occupied a High-Altitude Site in Australia During the Last Ice Age, New Study Finds – State of the Planet

The Blue Mountains, New South Wales, Australia. Credit: Donovan Kelly/Pexels A new study in Nature Human Behaviour led by Amy Way, a research archaeologist at the University of Sydney, establishes that sites above 700 meters in Australia were inhabited during the Last Glacial Maximum (LGM)—a period between 26,000 and 19,000 years ago. Way and her […]
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  1. Environmental Science

Discover Climate LIVE K12 Sessions for 2025-2026 – State of the Planet

Climate LIVE K12 is back! We are thrilled to announce the next season of our free online series, open to all learners curious about climate and sustainability issues. From October to June, Columbia Climate School researchers and students will share expertise on topics ranging from climate justice, biodiversity systems, fashion and energy, to youth-focused climate […]
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  1. Environmental Science

Moments that Paved the Path to COP30 – State of the Planet

Since COP21, in Paris, nearly every nation has pledged to take part in the global climate effort. Over just the past few years, the UNFCCC negotiations have evolved through key milestones, such as COP26 (in Glasgow), where countries agreed for the first time to phase down coal and submitted their second round of NDCs; COP27 […]
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  1. Environmental Science

As a Glacier Retreats, a Gold Mine Advances. Why Are Some Locals Angry? – State of the Planet

On the banks of the Tulsequah River, the abandoned Tulsequah Chief Mine leaks acid mine drainage into salmon habitat. Photo: Chris Miller/SFU News A small Canadian mining company, Canagold, is seeking permits and approvals to renew gold mining operations at a remote site in northwestern British Columbia (B.C.). Called the New Polaris Mine, it faces […]
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  1. Environmental Science

Will New Areas Uncovered by Glacier Melt Boost Swiss Hydropower and Clean Energy Goals? – State of the Planet

The Rhône glacier in the Swiss Alps. Credit: Jean-Paul Wettstein/Pexels A report from the Swiss Federal Council states that terrain newly exposed by glacier melt may allow for expanded hydropower infrastructure. Facilities in these areas could generate up to 3,900 gigawatt-hours (GWh) of energy annually by 2050, enough to power hundreds of thousands of homes. […]
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  1. Environmental Science

New EAT-Lancet Report Is a Sustainable Food Systems Roadmap – State of the Planet

Aerial view of agriculture fields at Xiachuan Island. Credit: wonry/IStock The much-anticipated second EAT-Lancet Commission on Healthy, Sustainable and Just Food Systems has been released, building on the landmark 2019 report that first defined the “Planetary Health Diet.” Professor of Climate Jessica Fanzo served as a commissioner, while her postdoctoral fellow, Bianca Carducci, contributed as […]
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