After hides are sourced, processing into leather involves chemicals, water use, and labor conditions that create both environmental and animal welfare implications. Understanding the full leather supply chain reveals welfare at each stage.
Leather processing welfare extends beyond the animal source to the human and environmental welfare of tanning. The welfare dimension most relevant to animal advocates is completeness of welfare accounting: skins that leave farms under welfare-positive conditions can be processed through supply chains with poor environmental management that affects wildlife and communities downstream. Chromium-laden wastewater from poorly regulated tanneries pollutes waterways affecting aquatic wildlife welfare. The most complete welfare perspective on leather includes the full chain from farm to finished product. Certifications that address only farm welfare while ignoring processing conditions provide incomplete welfare assurance. Leather alternatives that bypass the entire processing chain eliminate these concerns alongside the farm animal welfare dimension.