Also interesting, North Korea's wood burning trucks developed out of necessity due to oil sanctions : http://blogs.scientificamerican.com/plugged-in/how-north-

Also interesting, North Korea's wood burning trucks developed out of necessity due to oil sanctions : http://blogs.scientificamerican.com/plugged-in/how-north-korea-fuels-its-military-trucks-with-trees/ http://blogs.scientificamerican.com/plugged-in/how-north-kor...