I have been inundated lately by the enormity of the potential to reduce,
re-use and recycle. Several discussion groups on Yahoo (fossilfreedom,
SolarHeat) have stirred my imagination beyond relief.
One example: producing cheaply and in great quantities photovoltaic
panels (with an efficiency of only 13%) that would provide enormous
amounts of clean and low-cost energy, so much that electrolysis of water
to produce hydrogen and its cheap storage - all because key patents have
expired.