An agreement between the US and Germany to let construction of the Nord Stream 2 pipeline proceed has drawn fire from all sides, including a bipartisan group of US lawmakers who have raised questions about Russia’s geopolitical ambitions and the environmental impact.

The agreement could ease longstanding friction between Germany — which deems the pipeline a commercial project that will bring affordable gas from Russia to Europe — and the US, which has described the pipeline as a geopolitical tool for Moscow to increase its influence in the region and intimidate its neighbours, particularly Ukraine.