A backyard pond doesn't need a trench full of electrical conduits to get the sound of moving water. Poposoap's 12-watt solar fountain pump pairs a palm-sized submersible pump with a solar panel about ...
David Kuchta, Ph.D. has 10 years of experience in gardening and has read widely in environmental history and the energy transition. An environmental activist since the 1970s, he is also a historian, ...
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