Swiss National Council challenges Albert Rösti over summer heat response

Parliamentary confrontation over summer heat

The Swiss National Council opened a debate on Wednesday over the federal response to extreme summer heat and drought. Lawmakers from the Social Democratic Party, the Green Party, The Centre, and the Green Liberal Party submitted six urgent interpellations demanding federal action. The discussions followed the warmest summer in Switzerland since official measurements began in 1864, which included a temperature reading of 39.7 degrees Celsius in Basel-Binningen (the highest measured value on the northern side of the Alps). Social Democratic Party co-president Mattea Meyer accused Environment Minister Albert Rösti of nonchalance regarding climate dangers, while Green National Councillor Franziska Ryser argued that scientific warnings left no excuse for inaction.

Mr. Rösti, you should have expected this.

Proposals and agricultural losses

Parliamentarians presented competing proposals to handle severe weather impacts. Meyer advocated for mandatory work stoppages during temperatures above 33 degrees Celsius, statutory protections for tenants in overheated housing, and urban soil unsealing. Stefan Müller-Altermatt of The Centre warned of increased risks from debris flows and noted that fruit trees in northwestern Switzerland began flowering early during the late-summer heat, threatening next year's crop yield. Green Liberal Party president Jürg Grossen called for an alpine water storage strategy to support alpine pastures and supply firefighting reserves. Defending agricultural interests, Swiss People's Party National Councillor Ernst Wandfluh stated that heat and drought forced farmers to slaughter 17,000 more cows than in typical years, urging authorities to cut permit waiting times for farm water infrastructure.

Government defense and federal aid

Rösti defended the Federal Council against accusations of inaction, stating that the consequences of the heatwave did not catch his department unprepared. He maintained that specific operational duties, including installing air conditioning in nursing homes, fall under cantonal and municipal authority rather than federal jurisdiction. The minister pointed to relief programs deployed in August, including 54 million Swiss francs for the agricultural sector, 17.5 million Swiss francs for forestry management, and simplified regulations for animal feed imports. Free Democratic Party National Councillor Christian Wasserfallen argued that carbon reduction measures must remain economically viable, criticizing opposition parties for blocking green technologies like genetic engineering.

We are decarbonizing. The Federal Council's strategy is clear: we want to move away from fossil fuels.

Long-term adaptation plans

The Federal Council outlined administrative measures to address rising temperatures across future legislative cycles. The government plans to release a revised climate adaptation strategy in autumn 2026, accompanied by an action plan addressing heat stress from 2026 to 2031. A comprehensive national water management strategy focusing on water retention is scheduled for completion by the end of 2027, with preliminary benchmarks set for presentation in spring 2027. Heat adaptation standards will also be incorporated into the upcoming revision of the CO2 Act and integrated into the federal agricultural policy framework starting in 2030.