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Title: Natural gas is cleaner, richer in energy, and less expensive than coal to burn. Post by: ebuch_2200 on Sep 10, 2017 Natural gas is cleaner, richer in energy, and less expensive than coal to burn.
Title: Re: Natural gas is cleaner, richer in energy, and less expensive than coal to burn. Post by: zudomusti on Sep 10, 2017 Content hidden
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