Heat stress is an increasingly significant welfare challenge for dairy and beef cattle as climate change drives higher and more prolonged temperature events. Proactive heat abatement investment is a welfare and productivity requirement.
Heat stress causes genuine and measurable welfare harm - reduced behaviour, physiological stress, and in severe cases heat exhaustion. As climate change increases heat event frequency and severity, heat abatement investment transitions from optional enhancement to welfare necessity for UK dairy cattle. The economic case for heat abatement (milk yield maintenance, improved conception rates) aligns with the welfare case, meaning investment can be justified on combined grounds. Farms without heat abatement infrastructure will face increasing welfare compliance challenges as temperatures rise.