Waste not: How the St. Cloud recovery facility turns wastewater into green products
Large methane digesters, like the one in St. Cloud, could make a significant contribution in the fight against global warming.
Green
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Wadena man develops local biodigester as the biogas field goes 'gangbusters'
We've followed three nascent biodigesters for the last year, and they have all taken longer to launch than initially planned. Walter Ribeiro feels that the need to do so is increasingly urgent.
Das BioHaus models sustainable living where you might not expect it
A German camp in Minnesota features 3 keys to low-energy living.