The answer is "8.8 kgs or 19.4 pounds of CO2 emissions by burning a gallon of gasoline". The answer and its detailed calculation can be found at http://www.epa.gov/otaq/climate/420f05001.htm. You can also find the amount of carbon dioxide emitted by burning one gallon of diesel on this same web page.
19 pounds
A bus can carry many more people than a car, so the amount of Carbon dioxide (CO2) emitted by the burning gasoline or diesel is much less per person. This eases global warming a little.
Some types of coal contain sulphur, and when burned, release sulphur dioxide; this is the major source of sulphur dioxide emissions. There are ways to scrub pollutants out of the smoke emitted by coal-burning power plants, however, I personally think that it makes more sense to stop burning coal and switch to other methods of power generation.
Usually not. The amount of carbon dioxide emitted by volcanoes is very small compared to our emissions from the burning of fossil fuels. In fact, the dust and ash emitted by volcanic eruptions often shields the earth from the sun's rays for days and sometimes weeks, bringing a cooling effect.
First, it should be understood that the gallon of gas will not create any carbon. All the carbon due to the gallon of gas is already there, in and part of the gas(oline). It amounts to about 12/14 of the gasoline, so the carbon content of a gallon of gasoline is 12/14 of 6.2 lb (wt of a gallon of gasoline), or about 5.3 lb of carbon. It will still be 5.3 lb of carbon even if you burn it, since matter is not destroyed in a chemical reaction. If the question is how much carbon dioxide, the simplest answer is that there is about 3.2 times as much carbon dioxide produced in burning alkanes (like octane) as the weight of the alkane. A gallon of gas weighs about 6.2 lb and will combine with oxygen to make about 3.2x6.2 or 20 lb of CO2.
The amount of CO2 released by humans has increased over the last 200 years. This increase is primarily due to using fossil fuels in industries and vehicles.
clean coal is not renewable
Volcanic eruptions pump out dust, ash and other aerosols. These stay in the atmosphere for about a week, usually causing a cooling effect, as they reflect the sun's rays. The amount of carbon dioxide emitted is small compared with what comes from burning fossil fuels.
Burning coal in complete combustion of oxygen produces carbon-dioxide where as burning coal in limted amount of oxygen produces carbon-monoxide.
Burning release carbon dioxide and water; a small amount of ash remain.
Because trees consume carbon dioxide and produce oxygen.
Using carbon dioxide as an example: * Measurement of atmospheric carbon dioxide show a progressive increase * Calculations from the amount of fuel consumed indicate that CO2 is being generated, the gas is not being contained, removed or colected. It must therefore be being emitted