Question

which do you think is more important mororized vehicles cars or airplanes .why​

Answer 1

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To answer this question, we first need to understand two things. First, how pollution by means of transport is measured. And second, how comparisons are made.

In fact, to assess the emissions of a type of transport we must first know its fuel consumption per km. This number must afterward be multiplied by a specific emission factor (that depends on the fuel used). We then need to add this figure the emissions of the manufacturing and end of life phases of the vehicle analyzed. And if it’s a plane, radiative forcing emissions need to be accounted for too. Afterward, the results are weighted and divided by the number of passengers and the number of kilometers traveled. The result will be a number measured in g of CO2 /passenger/km.

Answer 2

Answer:

For a long time, planes have been much blamed for greenhouse emissions and global warming. For many years, they were considered the most polluting way of transportation. Trains, buses, and even cars – all vehicles were said to perform better than planes. But is this “common sense” still true nowadays

Explanation:

In fact, to assess the emissions of a type of transport we must first know its fuel consumption per km. This number must afterward be multiplied by a specific emission factor (that depends on the fuel used). We then need to add this figure the emissions of the manufacturing and end of life phases of the vehicle analyzed. And if it’s a plane, radiative forcing emissions need to be accounted for too.

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