Earth Day
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Partnering for Environmental Justice in Harlem
Now in its fifth year, the annual conference was created to highlight the critical climate-driven health and environmental impacts affecting our shared community.
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Why Climate Work Is Community Work
At a recent Climate School event, speaker Memphis Washington discussed the Waterfront Alliance’s climate resilience and environmental justice efforts in Coney Island.
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The Energy Vampires Haunting Your Home
Here are some of the devices and appliances that might be secretly costing you money and energy, and how to save on both.
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Make Every Voice Count This Earth Day
We all have the power to protect our planet, this month and beyond.
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Animated Infographic: Cool Tips for Hot Days (And Lower Bills)
With the current heatwave gripping the eastern U.S., we’re revisiting this story—originally published back in May—on practical ways to stay comfortable and cut energy costs during extreme weather.
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Why the Time To Go Solar Is Now
An open letter to American homeowners on the benefits of installing solar panels.
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Columbia Beautiful Planet 2025
Each year, we honor Earth Day by sharing some amazing photos celebrating the beauty and magic of our planet, as captured by the Columbia community.
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Powering the Future: Innovative Renewable Energy Projects Around the World
Take a virtual tour of some remarkable renewable energy projects from around the globe, each showcasing innovative technology, ambitious scale, and a commitment to a cleaner, more sustainable future.

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!

