Germans engineer an organic alternative from a paper waste product.
Iran marks the anniversary of its 1979 Islamic revolution on Tuesday.
A fashion movement asks consumers to think about the origin and materials of their clothes.
Biden opens a door on Iran, but presses allies on Afghanistan.
A vote Sunday could end Switzerland's brief experiment with open borders.
The Vatican is trying to clarify efforts to reconcile with a sharply right-wing set of bishops excommunicated in 1988.