Q. What is the common term for coal bed methane, which is characterized by its low hydrogen sulfide content?
Answer: Sweet gas
Notes: Coal bed methane, often referred to as "sweet gas," is derived from coal deposits and is notable for its low hydrogen sulfide content. In contrast, "sour gas" contains higher levels of hydrogen sulfide and requires treatment to make it safe for use. Additionally, coal bed methane contributes to greenhouse gas emissions, accounting for about 8% of global methane output.

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