Snowmaking’s Climate Impact Hinges on Electricity Grid, Austrian Study Reveals

**TL;DR** Austria's snowmaking operations demonstrate a low climate impact because they rely entirely on hydropower, highlighting the critical role of electricity sources in carbon footprints.

A new study from the University of Innsbruck reveals that the carbon footprint of snowmaking is primarily dictated by its electricity source. This finding challenges the common assumption that machine-made snow inherently carries a significant environmental cost, instead pointing to grid composition as the decisive factor. The study, conducted by Günther Aigner et al., analyzed energy consumption and sourcing from the 2022-23 and 2023-24 seasons.

The research indicates that Austrian snowmaking produces approximately 6,246 to 7,424 tonnes of carbon dioxide (CO₂) annually. This translates to roughly 120 to 140 grams of CO₂ per skier visit. This significantly low figure stems from a structural advantage: Austrian ski resorts power their snowmaking operations entirely with hydropower. These systems draw electricity directly from local mountain water sources, ensuring a minimal carbon output from energy generation.

To put this environmental impact into perspective for the general public, the emissions generated per skier visit from snowmaking are comparable to driving about 0.9 kilometers in a gasoline-powered car. This clarifies that when snow production is powered by low-carbon electricity, its direct climate impact remains marginal. The study emphasizes that the fundamental issue for high-emission snowmaking is not the technology itself, but reliance on fossil fuel-heavy electricity grids in other regions.

This research underscores a crucial point for the ski industry and climate policy: decarbonizing electricity grids represents the primary path to climate-neutral skiing. Focusing on the energy mix that powers snowmaking, rather than solely on snowmaking efficiency, offers a more impactful strategy. Future efforts to reduce emissions in winter sports will likely center on transitioning energy sources, compelling regions to invest in renewable infrastructure. Observers will track how other ski regions adapt their energy infrastructure, shifting to renewable sources to align with broader climate goals.