greenhouse gas emissions2
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It May Be Time to Reconsider Energy Efficiency Exemptions for Historic Buildings
Despite long-standing rhetoric, older buildings are not always greener, according to a recent study.
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Bitcoin’s Impacts on Climate and the Environment
The cryptocurrency’s high value comes at a high cost to the planet.
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Project Takes A New Approach to Gauging New York City’s Emissions
Estimates say the city releases about 50 million tons of carbon a year, but no one has actually measured it. A new project is trying to change that.
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Is Organic Food Really Better for the Environment?
Recent research suggests it might not be as sustainable as we might think, but it’s complicated.
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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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New Report Lays Out Strategies to Curb Emissions From Government-Owned Enterprises
These companies are among the world’s leading carbon emitters, so there can be no climate success without them.
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The Ocean Garbage Patch Is Tiny Compared to Our Carbon Footprint
How trash in our oceans can help us conceptualize and reduce our carbon emissions.
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The 35 Easiest Ways to Reduce Your Carbon Footprint
With these simple changes, you can make a difference without making much of an effort or financial investment.

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!
