Question to the Ministry of Defence:

To ask the Secretary of State for Defence, what assessment he has made of the potential impact of increased spending on military projects on the levels of carbon emissions associated with military activity.

Defence carbon emissions are primarily linked to operational tempo and not directly linked to levels of Defence spending. While emissions from different operating domains (e.g. estate, land, sea and air) can fluctuate from year-to-year, overall Defence emissions continue on a downward trajectory.

Between Financial Year 2019-20 and Financial Year 2022-23 overall Defence emissions reduced from 3.65MtCO2e to 3.13MtCO2e. A more detailed breakdown of Defence energy use and the associated carbon emission can be found in the MOD Annual Report and Accounts Annex D.