As we have shown, it’s not just a question of obliging governments to report on their military emissions, it’s also about what they report, and how they do it. As a first step:
- All Annex-1 countries should be obliged to provide mandatory reporting on military emissions. Data should be transparent, accessible, independently verifiable and fully disaggregated from other non-military emissions.
- Non Annex-1 countries with high levels of military expenditure should begin voluntary annual reporting on their military emissions.
The Greenhouse Gas Protocol’s system of scope 1, 2 and 3 reporting should be used to inform how militaries track and report their emissions. An equivalent approach would see Scope 1 covering direct emissions from their owned or controlled sources. Scope 2 covering indirect emissions from the generation of purchased electricity, steam, heating and cooling, while an equivalent to Scope 3 would include all other indirect emissions, such as procurement supply chains and military conduct during conflicts.
To ensure a level global playing field, the Inter-governmental Panel on Climate Change should urgently update its criteria for the reporting of military emissions.