Climate Ashley Jackson Climate Ashley Jackson

How armed groups shape climate adaptation efforts in Yemen

Yemen has lost 60 percent of its per capita water availability since 1990, yet received just USD 0.60 per person in adaptation finance between 2015 and 2021.

In the gap, armed groups are regulating water, leading emergency response, and banning construction in flood corridors. The motives of these armed groups are mixed, and there are real ethical risks. But climate action doesn't need a functioning central state, and it can work if it's built on legitimacy and led by communities.

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A Fracturing Order

This discussion paper examines how the international order that once contained armed conflict is fracturing across multiple, simultaneous dimensions. Drawing on cases spanning Sudan, Myanmar, Yemen, the Sahel, and Ukraine, the paper argues that these compounding failures have given armed groups and de facto authorities far greater freedom and resources than most analysts anticipated.

The paper identifies four cross-cutting dynamics reshaping this landscape: the breakdown of the classic patron-proxy model into fragmented, multi-patron brokerage networks; the growing economic and infrastructural power of armed groups, who now govern revenue streams, trade routes, and services independent of external backers; the retreat of international norm enforcement in favour of local, informal bargaining; and the weaponisation of misinformation to derail negotiations and access agreements. On this basis, the paper calls for a fundamental shift in how donors and practitioners approach engagement.

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