Animal Welfare and Climate Change: How a Warming World Threatens Animal Lives

Climate change is emerging as one of the most significant threats to animal welfare globally, affecting wild species, farmed animals, and companion animals through heat, drought, and ecological disruption.

Key Facts

Global average temperatures have risen 1.2°C above pre-industrial levels, with projections of 1.5–4°C by 2100 depending on emissions trajectories
Heat stress already costs the global livestock industry over $2 billion annually in production losses and animal deaths
Climate-driven coral bleaching has killed 50% of the Great Barrier Reef's coral cover since 1995, devastating marine species welfare
Phenological mismatches — species activity cycles falling out of sync with food availability — are reducing breeding success across many bird and insect species
Wildfires driven by drought and heat kill billions of animals annually in Australia, North America, and the Mediterranean
Sea level rise threatens nesting habitat for sea turtles, seabirds, and coastal species
Zoonotic disease spillover — including novel virus emergence — increases as climate change shifts wildlife distributions and human-wildlife contact
Domestic animals in heat waves suffer significantly: dogs, livestock, and horses are all vulnerable to heat stroke and death

Welfare Considerations

Climate change acts as a welfare multiplier — amplifying existing threats and creating new ones across every animal category. For wild species, warming disrupts ecological relationships built over millennia: prey availability shifts away from predator territories; migration timing no longer matches food availability; extreme weather events create acute mass suffering. For farmed animals, heat stress is already causing preventable deaths in poultry, pigs, and cattle in systems not designed for higher temperature ranges. For companion animals, heatwave mortality in dogs — particularly those left in vehicles or with restricted water access — represents a direct welfare consequence of rising temperatures. The welfare dimension of climate action is underemphasised in policy discussions that focus primarily on human impacts and ecosystem services. Recognising that hundreds of billions of sentient animals experience the welfare consequences of warming strengthens the moral case for ambitious climate action. Adaptation measures — providing shade, water, and heat refugia for farmed and companion animals — offer immediate welfare benefits while mitigation addresses the longer-term trajectory.

What You Can Do

Support ambitious climate policy — reducing warming is the most important long-term action for animal welfare
Adapt animal care practices for higher temperatures: provide shade, water, and reduce exercise during heat events
Never leave animals in vehicles during warm weather — temperatures inside can kill within minutes
Support organisations linking animal welfare and climate advocacy
Reduce your carbon footprint through diet, transport, and energy choices — each action contributes to reduced animal suffering
Engage with the connection between climate change and animal welfare in public conversations about both issues