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Articles on Greenhouse gas emissions (GHG)

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A heat exchanger and transfer pipes at Dominion Energy’s Cove Point LNG Terminal in Lusby, Md. AP Photo/Cliff Owen

Biden’s ‘hard look’ at liquefied natural gas exports raises a critical question: How does natural gas fit with US climate goals?

The US, a minor liquefied natural gas supplier a decade ago, now is the world’s top source. That’s good for energy security, but bad for Earth’s climate. An energy scholar explains the trade-offs.
Recycling construction materials and water can make urban agriculture more sustainable. Lauren Moore/USDA

Urban agriculture isn’t as climate-friendly as it seems, but these best practices can transform gardens and city farms

A study of dozens of city gardens and urban farms across the US and Europe found several ways to boost their benefits, not just for their neighborhoods, but for the planet.
A worker lifts a solar panel to the roof of a home in Frankfort, Ky. Small-scale solar infrastructure can deliver green energy at a fraction of the life-cycle emissions as large solar farms. (AP Photo/Michael Conroy)

Small-scale solar has key benefits, and one critical weakness, over large solar farms

Looking to go solar? While small-scale solar delivers the best results with the least life-cycle impact, a mixed approach offers the best long-term path towards an all-electric future.

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