Patent Lies Who Says Saving the Planet Has to Cost a Fortune?

One of the nagging issues in the run-up to the Copenhagen climate summit are demands that the US and Europe provide massive aid so poorer countries can buy expensive emissions-free technologies. Activist David E. Martin claims many of the patents for today's low-carbon technologies -- including some used in wind power and hybrid cars -- are already in the public domain.

Von Juliane von Reppert-Bismarck