The non-CO2 impacts of aviation must be tackled

It is estimated that gases other than CO₂ have at least as large a climate impact as CO₂. The European Commission has so far failed to address aviation’s non-CO₂ effects despite undertaking to do so in 2008. This risks undermining the EU’s climate policy. This report’s authors, CE Delft, recommend that the Commission acts on its 2008 promise and proposes measures such as a charge on NOx emissions and earmarks funds for research into other non-CO₂ effects such as contrail and cirrus formation and their avoidance.