Most of our fuel is fossil fuel, that is, coal, oil and natural gas. When these are used for fuel (by burning) they release carbon which has been stored in them for millions of years. This is adding to the amount of carbon dioxide (a greenhouse gas) in the atmosphere.
If you conserve fuel in your environment it lowers the amount of carbon dioxide pollution in the atmosphere and it stops the earth getting warmer.
It does not produce carbon dioxide
Yes, the use of biodiesel slows down global warming. Biodiesel fuel is carbon neutral, that is, it releases no more carbon dioxide into the air than it takes out. Using biodiesel means that a similar amount of fossil fuel diesel is not used, so that amount of carbon dioxide is not added to the enhanced greenhouse effect which is causing global warming.
Carbon dioxide cannot be used as an ordinary fuel as it is a product of the combustion of carbon.
That's all of it - what you exhale PLUS all the fuel burned to support you.
Carbon neutral means that algae fuel does not affect the levels of carbon dioxide in the atmosphere. Algae takes in carbon dioxide as it grows, then, when the fuel is burnt, this same carbon dioxide is released. No increase, just exactly the same amount. This is why biofuel is so much better than fossil fuel which releases carbon that had been hidden underground for millions of years, so adding to the levels in the atmosphere.
Bio fuel emits carbon dioxide (CO2) that was removed from the atmosphere when the plant grew (this year, probably). Fossil fuels (coal, oil and natural gas) emit carbon dioxide that has been hidden away for millions of years. So using biofuel instead of fossil fuel means that less carbon dioxide is added to the atmosphere.
Carbon and oxygen combine to form carbon dioxide, CO2, during the combustion of fuel.
Oil is a carbon-rich substance, and by burning it, we release a lot of carbon dioxide into the atmosphere. Carbon Dioxide is a greenhouse gas, so this can increase the Greenhouse Effect, which is linked to global warming.
Almost all fuels produce carbon dioxide when burnt, but only fossil fuels such as oil, coal and natural gas actually add to the amount of carbon dioxide naturally present in the atmosphere.
C 02- carbon dioxide
Your question assumes that it is more likely for this to happen in engines. It is NOT more likely. Burning a fuel anywhere produces carbon dioxide. The formation of the carbon particles depends on the amount of oxygen available and the tepmerature of combustion.