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Amber Wang

FILE-In this file photo taken Friday, Oct. 25, 2013, a plastic shopping bag liters the roadside in Sacramento, Calif. Gov. Jerry Brown has signed legislation on Tuesday, Sept. 30, 2014 imposing the nation's first statewide ban on single-use plastic bags. (AP Photo/Rich Pedroncelli) (AP)

Netherlands creating roads made out of your recycled plastic

Amber Wang
(ecoRobotix)

Weed-killing robots use fewer pesticides on farms and food

Amber Wang