At their El-Attar Street repair shops, Osama Farouk (right) fixes all manner of electronics — from cell phones to DVD players. Their trade is driven not by Cairo residents' environmental sensibilities but by more practical financial matters. (Associated Press)
Heiko Schuster, development engineer of the solar technology company Sulfurcell cleaned solar panels atop the company's headquarters in Berlin. The Algerian government's solar energy project is in its early stage and faces daunting financial and technological obstacles.