Penguins across Southern Hemisphere populations face welfare challenges from changing ocean temperatures, prey distribution shifts, and extreme weather events linked to climate change.
Penguin welfare from climate change encompasses both acute events — colony-wide breeding failures when sea ice melts prematurely — and chronic changes in food availability that cause gradual starvation and reduced breeding success across entire populations. An Emperor penguin chick that cannot fledge because sea ice has melted early faces exposure, exhaustion, and starvation over days. An African penguin chick that is underfed because anchovies have moved beyond adult foraging range experiences progressive nutritional stress over weeks. These are individual welfare experiences of acute and chronic suffering that multiply across millions of individuals annually and will worsen with each increment of warming. Penguin welfare is a concrete, measurable consequence of climate change that connects abstract temperature targets to identifiable animal suffering.