Nakuru, Kenya — In the open-air Wakulima Market thin plastic shopping bags have disappeared, banished by Kenya’s national bag ban. Produce sellers in this busy agricultural hub 95 miles northwest of ...

The technology continues to evolve, but 3D printing is still mostly used for creating prototypes or parts that won’t have to endure tremendous stresses or rigorous wear and tear. That might not always ...

Every year, around 500 billion plastic grocery bags are used worldwide. And an estimated 10 million tons of plastic are discarded in the ocean yearly. To help combat this waste, several American ...