I have recently been writing about atmospheric pollution from nitrogen and ozone (see here and here). According to a report from Natural England (NE 2015 p10) around a third of the nitrogen pollution on Dartmoor comes from long range nitrogen sources. This means the nitrogen comes from international sources and includes pollution from aviation and shipping.
Easyjet over Exeter
Currently carbon dioxide emissions from aviation account for around 2% of global emissions but these are set to rise by up to 400% according to the UN. As well as emitting carbon dioxide jet engines also emit nitrogen oxides, sulphur oxides, soot and water vapour.
Shipping accounts for 2% of total global emissions and this could rise by between 230-350% by 2050. As well as emitting carbon dioxide shipping engines also emit nitrogen oxides, sulphur oxides and soot.
Neither aviation or shipping are explicitly covered by the Paris Agreement on Climate Change but their continued growth will pose a serious threat to Dartmoor and elsewhere as a result of carbon dioxide, ozone and nitrogen pollution.
Natural England (2015) Atmospheric Nitrogen Theme Plan. Developing a strategic approach for England’s Natura 2000 sites. Improvement Programme for England’s Natura 200 Sites – Planning for the future. http://publications.naturalengland.org.uk/publication/6140185886588928