A new dependency: EU confronts energy vulnerability amid Greenland rift

How much verified proof exists for this claim

Single weak corroboration

How intriguing or unexplained this claim is

The claim involves an active investigation with geopolitical implications, as it mentions rising tensions between the EU and the US over Greenland, suggesting multiple competing theories and notable unknowns about the situation. However, it is not entirely speculative, as there is some basis in the EU's known efforts to diversify energy sources.