Narwhals are among the most sea ice-dependent marine mammals, making them uniquely vulnerable to Arctic climate change that is transforming their habitat faster than they can adapt.
Narwhals face a welfare and conservation crisis driven primarily by climate change. Their specialized adaptation to ice-covered Arctic waters has become a liability as ice retreats. As sea ice diminishes, narwhals lose predator refuge - orca populations are expanding into previously ice-covered waters where narwhals have never needed to develop effective predator avoidance behaviors. Entrapment events, where narwhals panic when ice unexpectedly closes over breathing holes, cause mass drowning. Climate change also affects prey availability as Arctic food web changes ripple through ecosystems. Narwhals cannot move to alternative habitats because they are the most Arctic-specialized cetacean. Their welfare and survival are fundamentally dependent on global climate action.