On the news last night, it was reported that a oil drilling company has applied to the authorities to drill for “sour gas” in a nearby community. A representative of the Sierra Club was shown on the news, telling how sour gas can kill (apparently, by inhalation) if carelessly handled, and residents were also shown expressing their concern about what they considered to be a threat to their lives being plunked down in their neighbourhood.
I’ve never heard of sour gas. I’ve certainly heard of the natural gas that heats our homes and powers some cars, but I don’t think this is the same thing.
What is sour gas exactly, what is it used for, and why is it as dangerous as it seems to be?