The outdoor brand Arc’teryx has issued an apology after a promotional fireworks display in the Tibetan plateau led to an outcry over potential environmental damage. The promotional Rising Dragon high-altitude show involved long stretches of choreographed pyrotechnics and coloured smoke along snow-topped Himalayan ridgelines in the Tibetan region of Shigatse. The organisers said the display used biodegradable, environmentally friendly materials, that all stock herds had been relocated and wildlife had been coaxed away with salt bricks. On Sunday, Arc-teryx and Cai issued apologies for the event, with the company saying the display “was out of line with Arc’teryx’s values”. On Monday, the China Advertising Association said it was “disappointed” in Arc’teryx for not having “explored more positive marketing strategies”.