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Unstoppable! Airless tire will never go flat
10 challenges for your airline and airport in 2013
Invention may lead to greener power plants
Top 20 most popular future jobs of 2030: Vertical farmer, limb maker, waste data...
Smart concepts on Kickstarter (photos)
Icon | Gary Hirshberg, co-founder and chairman, Stonyfield Farms
Infographic: Americans throw away 2.5 million plastic bottles every hour
Do wind farms have a negative effect on the environment?
Finally, a urinal for girls
15 most rewarding jobs of 2013
Rammed earth: traditional eco-architecture
LED street lights: How much energy is actually saved?