The Short Version
The claim is not supported by the available evidence. No Alps-wide data shows a significant increase in avalanche numbers in 2026. The only quantitative indicator — roughly 105 fatalities in the 2025–26 season — is described by official sources as in line with the long-term average of ~100. The strongest peer-reviewed research on Alpine avalanches and climate change projects a net reduction in total avalanche activity under warming, with only a compositional shift toward more wet-snow events. The claim overstates both the trend and the attribution.