According tomedia reports, although the high-altitude aircraft left only ice crystals, but they are not completely harmless. But now, according to a new study, by adjusting the plane’s altitude by 2,000 feet (about 610 meters) it could significantly reduce their environmental impact.
Condensation tail, also known as an airplane cloud, is an ice particle formed by the concentration of moisture in cold air on black carbon particles in the exhaust gases of hot aircraft. White, fluffy aircraft clouds can be seen from the ground, a process that usually lasts only a few minutes.
Sometimes, however, they spread and mix with adjacent tails or naturally occurring volume clouds to form so-called “tail clouds.” And this one may last for 18 hours.
When this happens, these tail clouds capture the heat released by the Earth, preventing them from leaving the Earth’s atmosphere. This is the emergence of an imbalance known as “radiation forcing”, in which the heat from the sun reaches Earth exceeds the heat released back into outer space.
According to previous studies, the climate impact of radiation forcings from aircraft may be as great as the co2 emissions accumulated in the aviation industry as a whole.
With this in mind, scientists at Imperial College London have developed a computer model based on data from Japan’s airspace. In addition, they determined that 80 per cent of radiation forcing in the region originated from 2 per cent of flights.
This is because those special aircraft pass through particularly humid air layers, where tails are particularly easy to form. However, if these aircraft fly at an altitude of up or down 2,000 feet, they can be removed from the environment. The model shows that radiation forcing in the area can be reduced by 59 per cent in this way.
The study also found that this approach could lead to aircraft consuming just under 10% more fuel, resulting in more CO2 emissions. Nevertheless, the reported reduction in radiation forcingfarted far exceeds the slight increase in greenhouse gases.