posted on Oct, 30 2013 @ 12:25 PM
reply to post by Tsurugi
I in no way implied that methane and ethane are not hydrocarbons. What I did state was that you were purposefully using the term "hydrocarbon" in
such a way that the casual reader could come to the false conclusion that the variety, complexity (carbon:hydrogen ratio) and composition (number and
variety of compounds) of hydrocarbon sources found on Titan closely resemble those found in fossil fuel sources on Earth.
Natural gas is of course primarily composed of methane. Methane is a hydrocarbon. Methane is found in abundance on Titan. Methane is known to be
formed by abiotic processes.These are statements of fact and I do not dispute any of them. Methane is also found in abundance on Jupiter, Saturn and
Uranus--what comparisons should we draw there?
This means some or all of Earth's hydrocarbons may be abiotic
Which means hydrocarbon fuels are not necessarily comprised of ancient jungles full of lizards
Which means hydrocarbons are not "fossil" fuels
Which means they are not necessarily non-renewable
This has been known, or at least indicated, since the 1980s
...and yet everyone in the media and in academia have persisted in referring to Terran hydrocarbons as "fossil fuels"
In your reply, you said that nobody was talking about coal and this is despite coal being the second largest source of energy derived from all fossil
fuels and the most common fuel for generating electricity. Examine your own statements and tell me how you can exclude coal, please. What about
petroleum? Are there lakes of crude on Titan? Natural gas is only one of the three substances commonly referred to as fossil fuels. Lastly, biogenic
sources of methane are by there very nature renewable and I don't believe there is any argument against that, it's being harvested from farms and
over the tops of landfills as we speak. It's the thermogenic and abiogenic sources that are considered exhaustible.
1. Only 1 of 3 "fossil fuels" are found on Titan or are known to exist anywhere outside of the Earth and it happens to be one that is
composed of primarily a single compound.
2. Hydrocarbon is not synonymous with "fossil fuel" or oil or petroleum or coal for that matter.
3. Methane from methanogens is in fact a renewable source.
4. You've made no attempt to compare the geochemistry of Titan and Earth.