Julia Butterfly Hill lived for over two years in a 2000-year-old redwood in Northern California, protecting it from a logging company's chainsaws.

During her first winter, a severe storm

Julia Butterfly Hill lived for over two years in a 2000-year-old redwood in Northern California, protecting it from a logging company's chainsaws.

During her first winter, a severe storm nearly killed her on her tiny perch. Julia recounts the horror and profound life lessons learned from those terrifying hours.

This Dateline story, uploaded December 31, 2008, features Julia Butterfly Hill. It documents her 14-month stay in a redwood tree, twenty stories high, to protect an old-growth Northern California

This Dateline story, uploaded December 31, 2008, features Julia Butterfly Hill. It documents her 14-month stay in a redwood tree, twenty stories high, to protect an old-growth Northern California forest.

Learn more about Julia at juliabutterfly.com.

Volunteers preparing for virtual lobby meetings on the Fix Our Forests Act (FOFA) will gain expert insights from James Campbell, J.D., Director of Federal Affairs & Strategic Counsel at Megafire

Volunteers preparing for virtual lobby meetings on the Fix Our Forests Act (FOFA) will gain expert insights from James Campbell, J.D., Director of Federal Affairs & Strategic Counsel at Megafire Action. He will address common Democratic concerns regarding FOFA.

This in-depth session, moderated by Dana Nuccitelli, CCL's Research Manager, will provide clear, informed talking points. These will help build understanding, find common ground, and strengthen your impact on Capitol Hill.

Learn more: https://community.citizensclimate.org/topics/healthy-forests/fix-our-forests/

Dr. Benjamin Franta discusses the hidden history of climate science, revealing how long the fossil fuel industry has known about global warming and what actions are possible today.

A JD-PhD

Dr. Benjamin Franta discusses the hidden history of climate science, revealing how long the fossil fuel industry has known about global warming and what actions are possible today.

A JD-PhD Candidate at Stanford and a Harvard PhD in applied physics, Franta studies fossil fuel producers and climate change politics. He organized Harvard’s fossil fuel divestment campaign, serves as a consulting expert for climate change litigation, and his research is widely published and cited, including in the US Congressional Record.

This talk was given at a TEDx event. Learn more at https://www.ted.com/tedx.

This session from Summit 21 (June 2021) highlighted efforts to shift towards a circular economy. It featured discussions with prominent figures including Brunswick Group's Lucy Parker, UCL's

This session from Summit 21 (June 2021) highlighted efforts to shift towards a circular economy. It featured discussions with prominent figures including Brunswick Group's Lucy Parker, UCL's Marianna Mazzucato, Coca-Cola CEO James Quincey, and Sitra's Jyrki Katainen. Experts also explored materials and sustainability with speakers from Universidad de Santiago de Chile, MIT, and the University of Toronto.

The Ellen MacArthur Foundation, a UK charity, accelerates the transition to a circular economy through business, learning, and insights.

For more insightful videos, subscribe to The Ellen MacArthur Foundation on YouTube. Learn more about our work and connect with us on social media via our website.

David Keith reviews the science and technology of solar geoengineering, examining its potential to reduce climate risks, associated new risks, and current uncertainties. He proposes integrating

David Keith reviews the science and technology of solar geoengineering, examining its potential to reduce climate risks, associated new risks, and current uncertainties. He proposes integrating solar geoengineering into a comprehensive 4D climate policy, which includes emissions cuts, carbon removal, and adaptation.

A distinguished expert, David Keith is a Harvard Professor of Applied Physics and Public Policy. He founded Carbon Engineering, a company developing technology to capture CO2 for carbon-neutral fuels. Best known for his work on solar geoengineering, he led Harvard's Solar Geoengineering Research Program. He has authored over 200 academic publications and "A Case for Climate Engineering."

The session was moderated by Greg Bronevetsky.

Maintaining human well-being across generations is a core sustainability challenge, intrinsically linked to clean air and climate change. Pollutants from sources like power plants and vehicles

Maintaining human well-being across generations is a core sustainability challenge, intrinsically linked to clean air and climate change. Pollutants from sources like power plants and vehicles degrade air quality and drive climate change, which further exacerbates air quality issues. Addressing both simultaneously, with a people-centered approach, is crucial for present and future health.

Noelle Eckley Selin, an MIT Associate Professor, specializes in these interconnected issues. Her research uses atmospheric chemistry modeling to inform decision-making on air pollution, climate change, and hazardous substances. With a Harvard PhD and experience in science-policy interactions, Professor Selin's expertise is vital. This talk was given at a TEDx event. Learn more at ted.com/tedx.

Dr. Gernot Wagner discusses solar geoengineering as a major climate change solution, exploring carbon taxes and the uncertainty involved in developing market-based fixes for our warming

Dr. Gernot Wagner discusses solar geoengineering as a major climate change solution, exploring carbon taxes and the uncertainty involved in developing market-based fixes for our warming planet.

At the time of his TEDx talk, Dr. Wagner held multiple roles at Harvard, including executive director of its Solar Geoengineering Research Program. A former senior economist at the Environmental Defense Fund and author of the bestselling book "Climate Shock," he now teaches at New York University.

This presentation was part of an independently organized TEDx event. Learn more at TEDx website.