A European consumer-protection official recently called Coca-Cola's PlantBottle claims greenwashing. The soda giant's response? Sustainability is complicated. Henrik Oe, the consumer ombudsman in Denmark, last month issued a report that criticized Coke for allegedly not following up on life-cycle assessment (LCA) promises in regards to the company's PlantBottle, a packaging innovation the company rolled out in 2009 and which it...

New York City Mayor Michael Bloomberg earlier this week announced a plan to bring food composting to a bigger swath of city residents, a push that is the latest in a cluster of recycling initiatives put forth by Bloomberg during his final year in office. It also places America's most populous city in the middle of the nation's ongoing expansion...