EarthTalk

EarthTalk: Algae’s Potential

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Dear EarthTalk: We used to hear a lot about algae's potential as a renewable source of biofuels. Is it still being cultivated and processed...

EarthTalk: Sand Batteries

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Dear EarthTalk: Could plain-ol’ beach sand be the next frontier in renewable energy? -- Paul C., Baltimore, MD In our ongoing quest for sustainable energy solutions,...

EarthTalk: 4 Day Workweek Climate Benefits

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Dear EarthTalk: What are the climate benefits of switching over to a four-day workweek? -- P. Proby, Denver, CO Nearly 200...

EarthTalk: Biosphere 2

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Dear EarthTalk: What ever became of the Biosphere 2 project in Arizona and what did we learn from it? --...

EarthTalk: Old Growth Inventory

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Dear EarthTalk: How much “old-growth” forest is left in the U.S. today and what are we doing to protect...

EarthTalk: Greener Holidays

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Dear EarthTalk: The holiday season brings so much food and packaging waste. What can I do to be part...

EarthTalk: Concrete – Scourge of the Planet

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Dear EarthTalk: Why is concrete production bad for the planet? Are there sustainable options? -- James B., Milwaukee, WI Concrete is...

EarthTalk: Spotted Owl’s Fate?

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Dear EarthTalk: How is the Northern Spotted Owl—the once endangered poster bird for old growth forest conservation in the...
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