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http://www.treehugger.com/sustainabl...od-system.html

Quote:
From meat eating versus veganism, to high-tech megafarms versus lucrative backyard agriculture, there is much disagreement in the green movement over what our food system should look like.
But one thing is fairly certain. When pigs start exploding, it might be time for a rethink.
Yet that is exactly what Kali Dingman over at the Minnesota Daily reports is happening on hog farms in the Midwest, where farmers started noticing a mysterious foam build up on top of their manure pits which was trapping methane gases, and subsequently causing explosions that killed thousands of hogs.
All I have to say is yikes
 
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