Earth Science
Ten Science Stories You Should Have Read
My ten favorite Smithsonian science and nature stories from the past year
It's Not Too Late to Save the Polar Bear
In 2007, scientists from the USGS said that if humans didn't cut greenhouse gas emissions, two-thirds of the world's polar bears could be gone by 2050
The Origins of Life
A mineralogist believes he's discovered how life's early building blocks connected four billion years ago
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