High tech to low, world’s green technology are many

This article in CNN Technology speaks about low and high tech solutions for reducing reliance on fossil fuels from using simple building materials such as straw and clay to installing solar panels on roofs.  Sieben Linden, the village in eastern Germany, mixes high- and low-tech approaches. Some of its roughly 100 residents live in homes built with little more than clay, wood and straw.  Straw bales coated with clay are put inside the homes’ walls. The insulation reduces the need for powered he

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