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Joe, you are absolutely right to highlight the effectiveness of Al Franken’s statement: green house gas emissions is the unique cause of the current global warming (according to the science findings).
Not to boast myself, but this has been the message of the taca association for years ( message far much stronger than 95% likely to be the main cause, what are the other causes found by the science? none!)

As this “dispute” is now settled, can we discuss of another one, of the same kind (and this one is a taca specific point of view).
Counting the ghg in CO2 (and CO2 equivalent) is much less smart than counting in Carbon (and C equivalent of course)
Why?

Because of the carbon cycle, there is the rule of mass conservation: the carbon you drill and burn is the carbon you pump in the atmosphere (multiply by 3,67 if you absolutely want to know the CO2 mass).

Another (big) avantage: 1 litre of gazoline weights nearly 0,9 kg (a bit lighter than water at 1 kg, the basic of the metric system).
This litre of gasoline roughly contains 0,7 kg of Carbon (the rest is Hydrogen and impurities)

But if you add the energy (in fact the carbon) used to drill, refine and eventually supply this litre of gasoline in the gas station, then you can add 0,1 kg of carbon for this litre of gasoline.

But we put this gasoline in the tank of our car, that has needed energy to be built and maintained during its whole life cycle, that is to say for its mileage (200 000 or 300 000 kms), and all this energy (carbon in fact), reported to every litre of gasoline it will consume, represents a bit more than 0,2 kg of carbon. (I have been agreed as carbon accounter according to the Bilan Carbone, french methodology, for 10 years)
At the end, there is the “magic” result, all included a litre of gasoline represents 1 kg of carbon: easy to remind and to get familiarized with carbon accounting.
This may look as an obscure and technical issue: no, it is a defining issue to get everyone involved in carbon accounting, the first step to understand the powerfull leverage of the consumer in the drastic carbon reductions required by the science if we really want to stop global warming.

More information in french on taca.asso.fr. We would enjoy discussing the merits of this issue.

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