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You Asked: How Does Carbon Dioxide Get So High Up Into the Atmosphere?
If CO2 is heavier than oxygen, why doesn’t it stay near the ground? The short answer: Earth’s atmosphere isn’t like a sealed bottle of wine.
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How Will Climate Change Impact the Gulf Stream?
Evidence suggests that this major ocean current, which influences the weather in parts of Europe and the U.S., is already changing.
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You Asked: How Can We Track Corporate Sustainability Measures?
An Earth Institute expert explains how to dig up a company’s sustainability records.
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You Asked: Do Artificial and Enhanced Wetlands Work?
A paleoecologist explains why it’s actually a bad idea to “drain the swamp.”
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You Asked: Does Carbon Capture Technology Actually Work?
We have the technology to capture and store millions of tons of carbon globally. Now all that’s lagging is the policy.
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You Asked: Should We All Go Vegetarian or Vegan to Reduce Our Carbon Footprint?
Short answer: Moderation is key.
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You Asked: Are My Efforts to Reduce My Carbon Emissions Too Minor to Matter?
Individual efforts to reduce carbon emissions could, in fact, go a long way in making a difference.
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You Asked: How Does Climate Change Help to Spread Diseases?
An Earth Institute expert explains why climate change is great for mosquitoes (but bad for people), and why we shouldn’t really worry about prehistoric germs coming back to life.
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You Asked: How Much Does the U.S. Subsidize Renewable Energy Versus Fossil Fuels?
The answer might seem cut and dried, but it’s not as simple as you might think.
AGU25, the premier Earth and space science conference, takes place December 15-19, 2025 in New Orleans, Louisiana. This year’s theme—Where Science Connects Us—puts in focus how science depends on connection, from the lab to the field to the ballot box. Once again, Lamont-Doherty Earth Observatory and Columbia Climate School scientists, experts, students, and educators are playing an active role, sharing our research and helping shape the future of our planet. #AGU25 Learn More
