A Significant Underestimation

Our previous article estimated that the automotive industry’s use of leather saved substantial amounts of CO₂-equivalent emissions. However, the LHCA’s new report, as featured in LeatherBiz, reveals that these numbers were grossly underestimated. According to data from the ReFED Food Waste Calculator, each hide, averaging 25 kilograms in weight, would contribute more than 300 kilograms of CO₂-equivalent emissions if disposed of in a landfill. This is due to the methane released during decomposition, a greenhouse gas significantly more potent than CO₂.

The True Impact of Upcycling Hides

With the automotive industry utilising roughly 35 million hides per year, the revised calculations show a saving of 10.7 million tonnes of CO₂-equivalent emissions annually. This is a staggering increase from our previous figures and underscores the critical role leather production plays in environmental sustainability.

The Potential of Increased Leather Usage

If the automotive industry were to increase its use of leather by just 10%, the reduction in emissions would exceed 1 million tonnes of CO₂-equivalent—a figure 16 times greater than our previous estimate of 64,000 tonnes. This adjustment highlights the immense potential for environmental benefits through even modest increases in leather usage, which is roughly equal to the annual greenhouse gas emissions from over 216,000 passenger cars or 120,000 homes (a small city).

The Dual Environmental Consequence of Not Using Leather

Choosing not to use leather and instead creating alternative materials carries a dual environmental burden. Firstly, producing new materials—especially synthetic ones—often involves energy-intensive manufacturing processes that contribute additional greenhouse gas emissions. Therefore, the environmental impact of the new material isn’t just its own production footprint; it also includes the 300 kilograms of CO₂-equivalent emissions per hide resulting from landfill disposal.

Beyond the Numbers

These new findings are more than just statistics; they represent a tangible opportunity to make a significant positive impact on our planet. By choosing to upcycle hides into high-quality leather interiors, the automotive industry can reduce waste, lower greenhouse gas emissions, and contribute to a more sustainable future.

A Call to Action

We encourage automotive manufacturers, designers, and consumers to recognise the substantial environmental advantages of leather interiors. By embracing leather, not only do we enhance the aesthetic and comfort of vehicles, but we also make a responsible choice that benefits the planet.

Leather’s renowned durability distinguishes it from synthetic alternatives that often degrade over time. Unlike materials that may crack, peel, or fade, genuine leather matures gracefully, developing a rich patina that adds character to a vehicle’s interior. This natural ageing process not only enhances aesthetic appeal but also extends the lifespan of seats and trim, reducing the need for replacements and contributing to sustainability through longevity.

Comfort is another arena where leather excels. Its natural breathability allows it to regulate temperature effectively, keeping seats cooler during hot summers and warmer in the chill of winter. This inherent adaptability ensures a comfortable ride throughout the year. Additionally, leather’s flexibility means it conforms to the body’s contours, providing ergonomic support that enhances the driving experience for both drivers and passengers on long journeys.

Leather’s aesthetic versatility allows for a high degree of customisation, making it attractive to a wide range of personal tastes. Whether aiming for timeless elegance or contemporary style, leather can be tailored with various finishes and colours to create a uniquely personal interior. This adaptability elevates the visual appeal of a car’s interior and enables owners to express their individuality through design choices.

From an environmental perspective, leather plays a significant role in promoting sustainability. As a by-product of the meat industry, using leather for automotive interiors helps minimise waste that would otherwise contribute to landfill mass and greenhouse gas emissions. This practice supports a circular economy by transforming potential waste into a durable, functional product. Moreover, advancements in leather production have led to more eco-friendly tanning and finishing processes designed to minimise energy consumption and reduce waste. These innovations align leather manufacturing with global sustainability goals, making it a responsible choice for environmentally conscious consumers.

In contrast, synthetic materials often marketed as “vegan leather” may carry hidden environmental costs. Typically made from plastics such as polyurethane (PU) or polyvinyl chloride (PVC), these alternatives rely on fossil fuels for production and involve energy-intensive manufacturing processes. They are also challenging to recycle, leading to long-term environmental concerns throughout their lifecycle.

In a market increasingly saturated with new materials and technologies, genuine leather remains a steadfast choice for automotive interiors. Its unique combination of durability, comfort, and sustainability resonates with those who value quality and ethical production. Leather enhances the driving experience, providing a tactile and aesthetic richness that synthetic materials struggle to replicate.

As the automotive industry continues to evolve, the demand for materials that offer both excellence and environmental responsibility is on the rise. Genuine leather meets and often exceeds these expectations, reaffirming its position as the gold standard for car interiors. For consumers and manufacturers seeking a material honouring tradition while embracing modern values, leather stands out as the timeless choice that delivers on all fronts.

One notable example is Natural Fiber Welding’s Mirum, a plant-based leather alternative that garnered attention for its eco-friendly approach. Despite initial enthusiasm, the company has recently faced substantial hurdles. Struggling to raise the necessary funds to scale production, Natural Fiber Welding has furloughed employees and seen the departure of its CEO. These developments highlight the difficulties that innovative startups encounter when attempting to bring new materials to market on a large scale.

Similarly, Bolt Threads’ Mylo, a leather alternative made from mycelium (the root structure of mushrooms), has halted production. Backed by prominent fashion brands and designers, Mylo was celebrated for its potential to revolutionise sustainable materials. However, the challenges of scaling production and managing costs proved insurmountable, leading to the cessation of its operations. These cases underscore the complex realities of developing and commercialising new materials that can compete with the established leather industry.

These struggles raise a critical question: Are we overlooking the advancements within the traditional leather industry itself?

Bovine leather, used in automotive seating, has undergone substantial environmental improvements in recent years. According to the Higg Materials Sustainability Index (MSI), its Global Warming Potential (GWP) has just been reduced by an impressive 60%. This significant reduction reflects the industry’s commitment to adopting more sustainable practices, from responsible sourcing to innovative processing techniques that minimise environmental impact.

The advancements in leather processing enhance sustainability and ensure that rawhides, a byproduct of the meat industry, are utilised effectively rather than contributing to landfill waste and methane emissions. The industry promotes a circular economy by transforming these rawhides into high-quality leather goods, maximising resource efficiency and minimising waste.

Considering these developments, it becomes apparent that substantial investments funnelled into developing new leather-like materials might yield further environmental benefits if redirected towards supporting and enhancing the sustainability of the existing leather industry. By investing in technologies and practices that further reduce the environmental footprint of leather production, we can leverage an already established industry that is actively progressing towards greater sustainability.

Moreover, supporting the leather industry ensures the preservation of skilled craftsmanship and the continuation of a material renowned for its durability, longevity, and aesthetic appeal. Genuine leather has a proven track record of performance, especially in demanding applications like automotive seating, where material integrity is paramount.

While innovation should always be encouraged, it’s essential to critically assess where our efforts and investments can make the most significant positive impact. The recent struggles of companies like Natural Fiber Welding and Bolt Threads highlight the challenges of bringing new materials to market at scale. By recognising and supporting the strides made within the leather industry, we can promote sustainability effectively. Redirecting investment towards enhancing genuine leather production capitalises on existing advancements and ensures that valuable resources, such as rawhides, are utilised responsibly, thereby reducing waste and promoting a more sustainable future.