Food-share apps seeking to help environment

Jack Convery pops into a London branch of Italian eatery Coco di Mama to grab a cut-price lunch ordered on his smartphone's food-sharing app Karma.

CEOs pledge sustainability, urge 'green revolution'

Business leaders gathered at a Rio+20 conference Monday pledged sustainable policies and joined a call for world leaders to usher in "a green industrial revolution" to save the planet.

Russia breaks 'Zero Waste' Olympic pledge

Trucks rumble to the edge of a gigantic pit filled with spray cans, tires and foam sheets and dump a stream of concrete slabs that send up a cloud of limestone dust. Other trucks pile clay on top and a bulldozer mixes everything ...

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