+ 31.03.2012 +
When choosing his speed, a driver faces a trade-off between private benefits (time savings) and private costs (fuel cost and own damage and injury).
+ 27.03.2012 +
The past decade has been one of unprecedented weather extremes. Scientists of the Potsdam Institute for Climate Impact Research (PIK) in Germany argue that the high incidence of extremes is not merely accidental.
+ 26.03.2012 +
A new international study which was compiled with the participation of the Universities of Bremen and Hamburg has arrived at some startling conclusions.
+ 24.03.2012 +
As the share of electricity production from renewable energies increases, the pressure is rising to integrate these energies in the market rather than conduct their production outside the competitive electricity market.
+ 24.03.2012 +
An investment of 1.1 billion euros is needed to expand the low voltage grids so that they can absorb 55 gigawatts of solar power capacity by 2020.
+ 24.03.2012 +
“This major breakthrough combined with our record-setting high efficiency design can result in a solar cell that can produce 200% of the power of conventional silicon solar cells,” said Jim Nelson.
The Dalai Lama: “Tibet will be free” The TV reporter Franz Alt spoke with the spiritual and political leader of Tibet beforehand about peace and human rights. more