leena vuotovesi is leading the green revolution in ii. the city with all these fresh ideas for how to really tackle climate change. by 2025, ii wants to be the first town in the world to produce zero waste. a goal embraced by all generations. we are heading to the centre of ii. it's houses from 18th century. the changes started seven years ago. ii stopped burning fossil fuels and began to build wind farms. they've switched to renewable energy only. wind, hydro, solar, and geothermal. we understood in ii, seven years ago, that climate change is not coming, climate change is here. and we cannot expect the rest of the world to do anything for our sake. we need to try to do our best, and take this into our own hands. they believe the key is early education. this ii primary school has 100 children aged 7—12 years old. in all schools across town, older kids mentor younger kids about climate change. so, in our school, we do something very similar. 15—year—old kia is one of the mentors. i have come encourage help help to younger children to do th