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... documented cases of greywater-transmitted illness in the U.S. They say this suggests that the reuse of greywater could represent a safe way to conserve natural water supplies and keep natural freshwater ...
... Thermal mass is used to conserve the heat that sunshine delivers to all buildings. Daylighting techniques optimize the use of light in buildings. Solar water heaters heat swimming pools and provide domestic ...
... and organizations that are direct consumers of energy may want to conserve energy in order to reduce energy costs and promote economic security. Industrial and commercial users may want to increase efficiency ...
... Refrigeration is also a major factor of energy consumption, electronic Energy saving modules (ESM) can be added to some existing HVAC and refrigeration systems at little cost to conserve electricity. Some ...
... World War II in every country involved in the war, urging citizens to donate metals and conserve fiber, as a matter of significant patriotic importance. Resource conservation programs established during ...
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