Enironmentalist concerns. The baltic sea is polluted and building a pipeline can only disturb it even more. To clarify, it is not about the gas as much as about construction, maintenance and eventual destruction of the pipeline. The green party is not in the ruling coalition but the baltic sea is a great concern for all parties. Climate change does not help but is not the main concern.
If I'm not mistaken, there are also plans for Norway to Poland pipeline (coming to western Sweden first)? Is Sweden planning to shut it down too?