As for operational improvements, a substantial amount of fuel is wasted due to inefficient routing. Better flight routing could reduce inefficient aviation operations growth and cut consumption by 10% according to the International Energy Agency (IEA). Whereas, according to EUROCONTROL’s Performance Review Report, the measures could lead to a 6% emission reduction in Europe. The introduction of free route airspace is estimated to have delivered 2.6 million tonnes of CO2 emissions reductions since 2014 and the continuous climb and descent operation could reduce CO2 emissions by 1.1 million tonnes per year.
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Source: ERA