Quote:
Originally Posted by The Oyster Guy  I'll repeat myself... please provide a reference for your claim, or retract it. I suspect it's much like alot of the other poop I've seen written in this thread: merely hearsay offered as evidence. |
I'm sorry, I forgot to answer you.
Per
the DOE, transportation in the US was 1884.7 Million metric tons of CO2, out of 7075.6 MMT of man-made gases. That’s about 26.6% of the US greenhouse gas emissions being from transportation.
Now, according to
Wiki (I don’t like it as a source either, but it works for rough numbers), 81% of transportation is highway transportation (cars, trucks, et al). So, 81% of 26.6% is 21.6% of the US greenhouse manmade gases being from highway transportation.
Also, according to
Wiki the US makes up about 20.2% of the world’s manmade greenhouse gases. So, 20.2% of 21.6% is about 4.4%. 4.4% of the world’s manmade greenhouse gases from US highway transportation.
Now,
this site says that total manmade gases account for about 5.5% of the total greenhouse gases that are in the environment (certainly there were these gases before man made increases, right?).
So, 5.5% of the 4.4% is about 0.25% of the total greenhouse gases coming from US highway transportation.
Feel better, snookums?