SCIENCE IN THE NEWS DAILY
L.A. OKs Ban on Plastic Bags at Checkout
from the Los Angeles Times (Registration Required)
Los Angeles became the largest city in the nation to approve a ban on plastic bags at supermarket checkout lines, handing a hard-fought victory to environmentalists and promising to change the way Angelenos do their grocery shopping.
The City Council voted 13 to 1 to phase out plastic bags over the next 16 months at an estimated 7,500 stores, meaning shoppers will need to bring reusable bags or purchase paper bags for 10 cents each.
The ban came after years of campaigning by clean-water advocates who said it would reduce the amount of trash in landfills, the region's waterways and the ocean. They estimate Californians use 12 billion plastic bags a year and that less than 5% of the state's plastic bags are recycled.
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PODCAST & VIDEO: 3D Printing Replacement Body Parts
Regenerative medicine, a fledgling field with the aim of regrowing parts from a person’s own cells, is being amplified with 3D-printing technology, which can now use organic materials to create scaffolds that cells need to grow into their final forms. Richard Wysk, a professor of industrial and systems engineering at North Carolina State University, discusses the latest successes with this research, and the timeline for creating more complicated structures.
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