|
Reclaiming rare earths: Improving process to recycle rare-earth materials Posted: 24 Oct 2012 02:55 PM PDT Recycling keeps paper, plastics, and even jeans out of landfills. Could recycling rare-earth magnets do the same? Perhaps, if the recycling process can be improved. Scientists are working to more effectively remove the neodymium, a rare earth element, from the mix of other materials in a magnet. Initial results show recycled materials maintain the properties that make rare-earth magnets useful.
|
|
2012 Antarctic ozone hole second smallest in 20 years Posted: 24 Oct 2012 01:47 PM PDT The average area covered by the Antarctic ozone hole this year was the second smallest in the last 20 years. Scientists attribute the change to warmer temperatures in the Antarctic lower stratosphere.
|
|
Speed limits on cargo ships could reduce their pollutants by more than half Posted: 24 Oct 2012 09:48 AM PDT Putting a speed limit on cargo ships as they sail near ports and coastlines could cut their emission of air pollutants by up to 70 percent, reducing the impact of marine shipping on Earth’s climate and human health, scientists have found.
|
