renewable energy18
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Giulio Verne and the Windmills
Like some Quixotic dream, at long last the formerly Dutch island of Manhattan reaches westward for windmills.
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Is Biomass Really Renewable?
Ninety percent of all existing biomass power plants use wood residue and there are currently 115 power plants in development that will burn biomass to generate electricity. But just how renewable is biomass energy?
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The Policy Buffet (Part 4): Eulogizing the Climate Bill that Wasn’t
On July 22, just days before the National Oceanic and Atmospheric Administration (NOAA) declared that the last decade was the warmest on record, the United States Senate abandoned its effort to put a price on carbon. Comprehensive climate and energy legislation was on life-support for weeks until Senate Majority Leader Harry Reid (D-Nev) announced that…
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New Yorkers Fear Impacts of Climate Change, And Want to Act
Residents Say Citizens, Business and Government Should Do More
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First Successful Demonstration of Carbon Dioxide Air Capture Technology Achieved by Columbia University Scientist and Private Company
Global Research Technologies, LLC (GRT), a technology research and development company, and Klaus Lackner from Columbia University have achieved the successful demonstration of a bold new technology to capture carbon from the air. The “air extraction” prototype has successfully demonstrated that indeed carbon dioxide (CO2) can be captured from the atmosphere. This is GRT’s first…
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Answers About the Earth’s Energy Imbalance by James E. Hansen, Director of the Goddard Institute for Space Studies
Below are answers to typical questions about this research topic and its implications provided by James E. Hansen, director, NASA’s Goddard Insittute for Space Studies. Hansen was lead author on a paper published by Science in April 2005 on this topic. What is the direct significance of the energy imbalance found by the authors in…
COP31, the 2026 United Nations Climate Change Conference, aims to advance dialogue, strengthen consensus, and accelerate climate action on a global scale. From November 9–20, 2026 in Antalya, Türkiye, heads of state, ministers, scientists, business leaders, and civil society will gather to advance efforts in emission targets, climate finance, and adaptation and resilience. Once again, our experts, students, and global thought leaders from Columbia Climate School and across Columbia University are contributing to key events, sharing insights, and helping shape the dialogue toward ambitious, science-based solutions. Learn More
