Softpedia: In this day and age, good old carbon dioxide is the poster child for global warming and climate change. Consequently, there are many who keep badmouthing it and who would love nothing more than rid our planet of it. However, there is one other very potent greenhouse gas way more potent than carbon dioxide that we should be worrying about, but that, for some reason, does not make it on the news all that often. This gas is methane, scientists explain. Unlike carbon dioxide, it does not linger...