This document summarizes the work of an NGO called Ilmari from 2003-2012 to communicate climate change to schools in Finland. It discusses how their core message changed from "climate change exists" to "we need to act now" to "how do we solve it together". It also notes that youth attitudes shifted from thinking solutions exist but nobody acts, to realizing many solutions and people are actively addressing the issue. Their final message in 2012 was "we will make the future", emphasizing that everyone can contribute to a sustainable future.