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"Energy security is rapidly becoming a major concern for citizens of both developed and developing countries. We have grown totally dependent on low cost oil and gas for our everyday lives. As increased pressure is put on the remaining reserves, prices are rising inexorably, and alternatives must be sought. This requires a change of lifestyle for the 21st Century. Wastewatts is a technology discussion forum that looks at ways in which we might change our fossil fuel dependent lifestyles, off-setting petroleum with renewable fuels or those derived from industrial or agricultural Waste."

Talking about turning the world upside down.

"A groundbreaking project is currently being implemented on the Hönggerberg Campus of renowned Swiss Federal Technical Institute, ETH Zurich. In the future, waste heat from buildings on the Science City Campus will be stored in the earth during the summer through 800 ground probes."

This has got to spell disaster for the environment. Just when we are trying to make things efficient and with a bit less convenience these guys are designing a gizmo that will set us back decades. It will obviously be of very low efficiency. The power wasted just translates into more co2. This is the opposite of sustainable and is typical of the idle Americans. Present company accepted!

40-45% at present! Why not burn the rainforests too?