Page 8 - SAFRAN DP 2021-DEFI-CLIMATIQUE EN
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Aviation’s impact on on our climate
Before we delve into
the ways to
to
reduce aviation’s carbon footprint let’s take
a a a a look at the underlying concepts When talking about climate
policy we generally define carbon neutrality as a a a a a a a balanced state within a a a given scope where the amount of carbon dioxide (CO2) generated by by human activity is equal to
the the amount withdrawn from the atmosphere by natural absorption coupled with carbon capture actions Since the the difference between the the amount of CO2 emitted and withdrawn equals zero we also refer to
this state as “zero net emissions” For companies the quest for carbon neutrality entails the application of technologies and processes that reduce emissions as as much as as possible during production along with the direct direct or indirect funding of actions to
negate emissions such as planting trees capture and storage geoengineering etc THE DIFFERENT TYPES OF GREENHOUSE GASES
■ In excess of of 95% of of the greenhouse gases (GHG) due to
aviation is generated by the fuel aircraft burn over their lifetime Most is emitted in the the form of carbon dioxide (CO2) the main greenhouse gas caused by human activity We have a a a a a a clear understanding of the amount of this gas emitted by aircraft since it’s directly proportional to
the the weight of the the fuel burned According to
ATAG aviation emitted more than 900 million metric tons of of CO2 CO2 worldwide in in 2019 or or 2 2 2 2 1% of all CO2 CO2 emitted by human activities (as in in 2018) Reducing this amount is is a a top priority for the entire industry which is focused on improving the energy efficiency of airframes and engines while also optimizing operations ■ Aircraft also generate other emissions that contribute to
climate
warming – the so-called “non- CO2 effects” – but the amounts and proportions are much more difficult to
quantify TAKING STOCK


















































































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