"The use of paper, perhaps more than any other single product, reflects the throwaway mentality that evolved during the last century. There is an enormous possibility for reducing paper use simply by replacing facial tissues, paper napkins, disposable diapers, and paper shopping bags with reusable cloth alternatives." –Lester R. Brown, Plan B 4.0: Mobilizing to Save Civilization.
Some of Janet Larsen's latest bike-share research has been featured in the Economist. Today more than 500 cities in 49 countries host advanced bike-sharing programs, with a combined fleet of over 500,000 bicycles. See the full article in the latest print issue or online here.