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Wind turbines require massive structures that are polluting to produce and can harm ecosystems, but these impacts compare favorably with those of fossil alternatives. www.shutterstock.com

Does ‘green energy’ have hidden health and environmental costs?

No energy source is perfect, but solar and wind have a much lower health and environmental footprint than fossil fuels, a study finds. Biopower, though, is a mixed bag.
An ancient form of energy: a wood pellet manufacturing facility in upstate New York. thewildcenter/flickr

Does bioenergy have a green energy future in the US?

The future of two key energy policies – the EPA's Clean Power Plan and Renewable Fuel Standard – will decide whether bioenergy will continue to grow in US or not.
Save the rainforests? A new study shows mangroves matter too, as they can store three to five times more carbon than rainforests. Daniel Murdiyarso for Center for International Forestry Research

Stopping mangrove deforestation in Indonesia could help slow climate change

Indonesia is ranked among the world's top dozen contributors to climate change – but a new study shows that protecting the country's mangroves could slash its greenhouse gas emissions.

Termite stomach acid to aid biofuel

A study into the role of gut bacteria in termite stomachs has given surprising, but hopeful, results. Researchers at Purdue…

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