Carbon dioxide is usually measured in kilogrammes or tons. But at standard temperature and pressure, one cubic metre of carbon dioxide weighs 1.83 kilogrammes. So a ton of carbon dioxide occupies 546...
Man, and all animals, breathe out carbon dioxide, but that is part of the natural carbon cycle, and that carbon is removed just as regularly. Apart from the carbon cycle, man releases about 29...
They use jet fuel which creates carbon dioxide and other pollutants. Man produces between 3 and 6% of all CO2 produced. Planes make up a very very small portion of the total CO2 we produce.