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Essential rainwater harvesting
Essential Rainwater Harvesting covers complete home-scale rainwater harvesting system design including goal setting, system planning, site assessment, calculations, and material selection and sizing for all climates.
Regular price $39.99Sale price $39.99 Regular price $39.99Unit price per -
The rare metals war
Is the shift to renewable energy and digital devices going to free us from severe pollution, material shortages, and military tensions?
Regular price $20.00Sale price $20.00 Regular price $20.00Unit price per
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