![](http://static.ddmcdn.com/gif/blogs/dnews-files-2014-06-coral-140616-240.jpg)
The ocean is acidifying 10 times more rapidly than during a major period of global warming.
![](http://static.ddmcdn.com/gif/recipes/meteor-crash-140616-200x200.jpg)
New evidence implicates one of Earth's biggest impact craters
in a mass extinction that occurred 33.7 million years ago.
![](http://static.ddmcdn.com/gif/blogs/dnews-files-2014-06-Antarctic-broken-ice-pack-250x250.jpg)
Runaway icebergs are bashing into Antarctica's shores,
leading to dramatic population losses of the tough species trying to
exist in the region.
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