Youth-led translation efforts provide solutions to make climate knowledge accessible worldwide. When the heaviest rains in 50 years triggered catastrophic monsoon floods across western Nepal in September 2024, leaders activated warning protocols, but few people received them. Then, Kathmandu, which sits in the central part of the country, experienced sudden, unexpected heavy rainfall at the same time, and the response was widely acknowledged as inadequate1. Government agencies issued warnings and banned night-time travel, yet communication failed to reach hard-to-access communities. But Raj Baniya, a 22-year-old law student, went further. He got in touch with the 22 student volunteers he leads at the Nepal Chapter of Climate Cardinals. Some in his group organized aid; others alerted neighbours. All used local languages to reach those without government warnings.