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Reviews of: Study shows water saving systems can increase CO2 emissions |
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Water expert
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13 Sep 2010, 9:19 AM
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Rainwater harvesting is designed to save water
What isnt mentioned is that the energy use of a rainwater harvesting system is still relatively small, and that these systems are not a method of reducing C02, but are designed to save water, supplies of which are under severe strain. Whilst carbon emissions are a key problem to solve, it would pale into insignificance very quickly if we had no water to drink, wash and flush toilets which as we know can bring communities to a standstill within a matter of days.
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Just Water Savers
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11 Sep 2010, 12:53 AM
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Localised calculations vs Infrastructure costs
What the article / study doesnt discuss is the carbon footprint of centralised infrastructure vs decentralised (ie at the home).
As an example, the use of a greywater irrigation system including a pump, uses one tenth of the energy required to capture, treat and redistribute greywater from a municipal treatment plant.
www.besthomewatersavers.com
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