One year after violent conflict began, information is now emerging on the specific environmental impact of war in Ukraine’s highly industrialised Donbas region. Although obtaining accurate data is difficult, indications are that the conflict has resulted in a number of civilian health risks, and potentially long-term damage to its environment. In order to mitigate these long-term risks, international and domestic agencies will have to find ways to coordinate their efforts on documenting, assessing and addressing the damage.