Since time immemorial people have known that in the wake of the armies follow death and destruction. On old Chinese adage says exactly that.
It is very odd then, that with the massive international focus on climate that the obvious damage done on the climate by the militaries and the wars, greenhouse gases pertaining from the militaries and the wars have been kept out of the books since the first international agreement to mitigate climate change, namely the Kyoto Protocol. It was due to pressure from the US Government (Bill Clinton and Al Gore). The US did not even ratify the Kyoto Protocol, but the omission of the large climate foot print from the militaries has been kept out of the negotiations since then. At COP21 in Paris it was agreed, though, that military emissions could be reported to the UNFCCC - UN's Framework Convention on Climate Change. But optional and voluntary. No surprise, very few countries have included their military emissions.
Attention has been growing among peace and climate activists and also in the academia over the last 15-20 years on this issue.
The issue has been vital for the NPA since the first years' conference. Several member organizations have been working dedicated on the nexus between the military, climate and environment. See e.g. the report below from the Global Week of Action for Peace & Climate in Sweden.
The Nordic Peace Alliance encourages peace, climate and environmental groups and organizations to embrace this issue and strengthen the cooperation between these groups.