Global airlines are setting up a task force to deal with non-carbon dioxide (CO2) emissions, stepping up efforts to tackle cloudy streaks formed by aircraft known as contrails, an environmental threat that until now has taken a backseat to carbon pollution in the response to global warming.
The move comes as the International Air Transport Association , representing some 300 major airlines, is preparing to discuss the warming effect of contrails for the first time at its annual meeting in Istanbul next week.
The idea is to "accurately predict conditions favouring the formation of contrails and minimize the risks of increased fuel when avoiding them," an IATA spokesperson said in response to a Reuters query. " 10% of all flights contribute to 80% of the warming effects," said Roger Teoh, a researcher at Imperial College London, adding that "the annual warming effects of contrails could be two times larger than the cumulative effects from CO2."
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