Experts from the US National Aeronautics and Space Administration (NASA) and the German space agency DRL have obtained a 20 to 30 percent reduction in the number of ice crystals from these trails, according to research published in Nature Research Communications Earth & Environment.
The article identified the warming effect of jet as the largest contributor to climate change in air transport, higher than CO2, hence the importance of the discovery to achieve a more environmentally friendly sector.
Christian Voigt, of the DLR Institute for Atmospheric Physics in Oberpfaffenhofen, said joint flight tests conducted in 2018 showed that using sustainable fuels results in fewer soot particles in the engine exhaust, a statement said.
Voigt noted that although the crystals are on average larger, this evidence represents a major advance on the potential for climate-friendly air transport.
Fewer ice crystals reduce the energy input to the atmosphere from condensation pathways. This significantly reduces the greenhouse effect of thinner condensation clouds.
The sustainable fuel is sourced from renewable sources without the use of petroleum-derived hydrocarbons and has a lower carbon footprint than fossil kerosene.
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