A. AIRPLANES.
Ritchie ’20 [Hannah; October 22; MPP in international development from Georgetown University, executive assistant to Dr. Max Roser; “Climate change and flying: what share of global Co2 emissions come from aviation?” Our World in Data, https://ourworldindata.org/co2-emissions-from-aviation]
The first is the disconnect between its role in our personal and collective carbon emissions. Air travel dominates a frequent traveller’s individual contribution to climate change. Yet aviation overall accounts for only 2.5% of global carbon dioxide (CO2) emissions. This is because there are large inequalities in how much people fly – many do not, or cannot afford to, fly at all.
The second is how aviation emissions are attributed to countries. CO2 emissions from domestic flights are counted in a country’s emission accounts. International flights are not – instead they are counted as their own category: ‘bunker fuels’. The fact that they don’t count towards the emissions of any country means there are few incentives for countries to reduce them.