It varies from car to car, basically it comes down to fuel consumption, a small car like a Toyota Corolla with a 1.8L engine produces 174g of Co2 per km traveled while a Hummer H3 with a 3.7L engine is 327g per km
Very little if any, but the newer cars that put out more water vapor do because the problem of AGW was caused by the sloppy failed peer review system used today for most non-critical scientific publication. This allows those whose work is not up to the stricter scientific method to get published anyway if their work supports a politically correct position. So unless some assumption, hypothesis or theory has been verified by the scientific method it can not be trusted to be real or scientific. There have been a lot of things that have killed or injured millions that passed peer review/ Chernobyl after all was passed by peer review while later examination through scientific method showed the basic problems that caused the failure.
Some scientific information revealing the truth about global warming, when it happened and what probably caused it.
Viewed in aggregate, the 290 million Americans emit 65% more carbon ... For a luxury car, the greenhouse gases emitted per pound of work could be even worse. .... When we buy a smaller car we save on gas, parking becomes much easier, ...
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It varies from car to car, basically it comes down to fuel consumption, a small car like a Toyota Corolla with a 1.8L engine produces 174g of Co2 per km traveled while a Hummer H3 with a 3.7L engine is 327g per km
http://www.carpoint.com.au/new-cars/details.aspx?R...
http://www.carpoint.com.au/new-cars/details.aspx?R...
Using just the small car as the mean, there are ~800,000,000 cars in the world today producing vast quantities of Co2.
Very little if any, but the newer cars that put out more water vapor do because the problem of AGW was caused by the sloppy failed peer review system used today for most non-critical scientific publication. This allows those whose work is not up to the stricter scientific method to get published anyway if their work supports a politically correct position. So unless some assumption, hypothesis or theory has been verified by the scientific method it can not be trusted to be real or scientific. There have been a lot of things that have killed or injured millions that passed peer review/ Chernobyl after all was passed by peer review while later examination through scientific method showed the basic problems that caused the failure.
Some scientific information revealing the truth about global warming, when it happened and what probably caused it.
http://www.geocraft.com/WVFossils/global_warming.h...
http://www.geocraft.com/WVFossils/greenhouse_data....
http://reasonmclucus.tripod.com/CO2myth.html
http://mc-computing.com/qs/Global_Warming/Atmosphe...
http://en.wikipedia.org/wiki/Solar_variation
http://en.wikipedia.org/wiki/File:Sunspot_Numbers....
Where the heat came from and why it was abnormally cold previously
http://www.ac.wwu.edu/~dbunny/research/global/215....
http://en.wikipedia.org/wiki/Solar_cycle
http://en.wikipedia.org/wiki/Solar_minimum
http://en.wikipedia.org/wiki/Maunder_Minimum
Viewed in aggregate, the 290 million Americans emit 65% more carbon ... For a luxury car, the greenhouse gases emitted per pound of work could be even worse. .... When we buy a smaller car we save on gas, parking becomes much easier, ...
It doesn't matter. CO2 is plant food, the climate is always changing, with or without us. Human beings are insignificant on the earth.
On a global scale, about 10% of human-produced greenhouse gases.
http://cait.wri.org/figures.php?page=World-FlowCha...
i dont think there is a defininte answer to this. everybody has their own estimate