In just six hours, the world's deserts receive more energy from the sun than humans consume in a year, calculated German physicist Gerhard Knies in 1986. If even a tiny fraction of this energy could be harnessed, Knies believed we could move beyond dirty and dangerous fuels for ever. “Desertec” is the culmination of his efforts.
read more 11 Dezember, 2011 / London Guardian, United Kingdom.
