“ Not enough ethanol? In the first place, it is not clear that ethanol yields a net savings in energy. It takes more energy to make ethanol than the... (read full comment) ” 

Posted on December 18, 2007 at 9:55 AM EST

“ Science in the ISS? We are spending billions to put up the ISS, while real science is suffering. There is a cosmic ray experiment waiting to go to... (read full comment) ” 

Posted on December 6, 2007 at 10:19 AM EST