Limiting the global average temperature increase to 1.5 °C requires significant efforts to mitigate greenhouse gas emissions. The European Union has set an overall target of a 55% greenhouse gas (GHG) emission reduction by 2030 compared to 1990 levels (‘European Green Deal’). Present proposals for a European blending mandate for SAF as outlined in the European Green Deal will provide an important signal to the market, but fall short of limiting global warming to 1.5 °C. The climate impact from aviation results from the emission of CO2 (“CO2 effect”). Other emissions are NOx, sulphur, water vapour and contrail formation, all of which are contributing to the so called “non-CO2 effects”.
- Sustainable Aviation Fuels (SAF) can reduce CO2 emissions by approximately 80% to almost 100% depending on their production pathways. Furthermore contrail formation is reduced due to lower particle emissions. Both effects will support the reduction of global warming.