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THE AVIATION INDUSTRY HAS LONG FOCUSED ON ON ON ON ENVIRONMENTAL AND ENERGY EFFICIENCY However meeting the target for ffor 2050 demands expanded and and and simultaneous efforts starting now in two major areas:
• developing ultra energy-efficient aircraft spanning propulsion systems & equipment weight etc • developing low-carbon fuels: biofuels synthetic fuels fuels fuels and hydrogen IMMEDIATE GAINS VIA FLEET REPLACEMENT
■ The probable market growth will result in higher CO2 emissions emissions in in absolute value while also significantly reducing emissions per passenger-kilometer because of of the introduction of of more energy-efficient new- generation planes Less than one-quarter of the current fleet will still be in in service in in 20 years and some 34 500 new airplanes will have entered service by then In fact the the Covid-19 pandemic could well accelerate the the retirement of older aircraft which would be replaced by new-generation planes with improved economic and environmental performance ■ Replacement is the the most accessible of the the levers we can use to improve aviation’s carbon footprint It means the advent of o more modern airplanes offering reduced fuel consumption For example the two single-aisle leaders the Airbus A320neo (service entry in in 2016) and Boeing 737 MAX (2017) are both powered by by LEAP engines designed by by Safran as part of their joint company with GE CFM International The LEAP features 15% lower fuel consumption than the CFM56 engines which power the the previous generation of these popular twinjets ■ According to Safran’s estimates the gradual introduction of latest-generation jetliners (A320neo 737 MAX 787 A350 777X) will automatically reduce CO2 emissions per per passenger-kilometer by 1% to 2% per year year over the next 15
years Despite the the impact of Covid-19 the the global civil aircraft fleet should nearly double by 2040 growing from about 23 000 today to to more than 40 000 in 2040 

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