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Renewable Energy
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Renewable Energy: Sources, Benefits and Limits
A plain-language guide to renewable energy: what it is, the main sources, recent growth in the United States and worldwide,…
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The US Renewable Fuel Standard in Brief
A plain-English guide to the US Renewable Fuel Standard, RVOs, RINs and the 2026-2027 volumes.
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The Main Types of Renewable Energy Compared
A plain comparison of the main types of renewable energy: what each uses, what it produces and how they differ.
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Renewables and Fossil Fuels: A Side-by-Side Look
A plain comparison of renewables and fossil fuels: life-cycle emissions, share of electricity, and the trade-offs that matter.
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Life Cycle Assessment: Measuring a Fuel’s Footprint
A plain guide to how a biofuel’s footprint is measured, from feedstock to tailpipe, and why results differ.
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Anaerobic Digestion: Making Energy from Organic Waste
Microbes in sealed, air-free tanks turn organic waste into biogas and digestate. Here are the four stages and what comes…
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Green Hydrogen and Biofuels: Different Routes to Clean Fuel
Green hydrogen splits water with renewable power; biofuels convert biomass into liquid fuel. Here is how they differ and where…
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Biomass Energy: Advantages and Drawbacks
A balanced look at biomass energy: where it helps, where it harms, and how to judge a project.
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What Carbon Intensity Scores Tell You About Fuels
A plain guide to carbon intensity scores: what they measure, why the same fuel can score differently, and how to…