Wolverines depend on persistent spring snowpack for denning and food caching. As climate change reduces mountain snow cover, wolverine welfare and survival face existential pressure.
Wolverines face a welfare crisis driven by climate change that operates at the population level but has profound individual consequences. Kits born into dens that lose snow cover before weaning die from exposure and predation; females experience reproductive failure that compounds over successive years of poor snowpack. The physiological stress of inadequate food resources during winter, when wolverines depend heavily on cached food and carrion, affects individual body condition and reproductive success. Trapping adds acute suffering to a population already under climate pressure. Conservation responses including habitat connectivity preservation, trapping regulation, and climate advocacy are the primary levers available; reducing greenhouse gas emissions is ultimately the most important long-term action for wolverine welfare.