![](http://static.ddmcdn.com/gif/lake-erie-bloom-far-nasa-eo-250.jpg)
Lake Erie is under attack from noxious algae blooms, and the
problem only looks likely to get worse if something isn't done to
reverse the trend.
![](http://static.ddmcdn.com/gif/deep-sea-hydrothermal-vents-chimneys-250.jpg)
Genetic evidence suggests that hydrothermal vent life on the
seafloor today have family linage that date back to just after the last
mass extinction.
![](http://static.ddmcdn.com/gif/blogs/dnews-files-2013-04-250SaltRange.jpg)
Plant fossils from Pakistan bolster the theory that a
gigantic volcanic eruption in Siberia was responsible for the largest
extinction event in Earth's history.
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