‘We have a responsibility’: the older women suing Switzerland to demand climate action

Switzerland's KlimaSeniorinnen are taking the government to the European court of human rights for doing too little to tackle the climate crisis

The women, mostly in their 70s, strode up the mountain with dogged grace. Clacking their hiking poles against sun-cooked rocks, they set sure feet on shaky stones and held hands to cross slippery streams. They knew the heat and strain were a threat to their health - they were perhaps uniquely aware of the risks - but they did not plan to let it limit their lives.

I'm a mountain climber," said 73-year-old Pia Hollenstein, brushing away the hand I offered to help her down a big rock. I can manage."