Actually formulating methods for energy recovery from sources such as these has a very long and distinguished historyNorwegians can now heat their homes and offices by flushing the toilet.
The sewage heat pump plant, which began operating last week, uses fridge technology to tap heat from raw sewage and direct it back to the country's capital Oslo.
Here is a link to this months oil-market report by IEA and some insight to what is driving oil prices...
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