My Ozone

Mining is the second most dangerous profession in the U.S., averaging 27 deaths for every 100,000 workers per year, according to the U.S. Census Bureau. That safety record is now blown. On April 5th, 25 of the roughly 20,000 miners in West Virginia died in a tragic incident at the Upper Big Branch mine. Four remained missing as of Friday.  

The explosion appears to have been caused by a buildup of methane . An odorless, colorless, tasteless gas that you know as natural gas. It explodes at concentrations in the air of as little as 5 percent. The incident also could have been caused or exacerbated by coal dust, which is equally combustible. That’s why we burn it to make electricity.  

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