Youth can and should play a key role in finding innovative solutions that help to change the trajectory of development. 

Special envoy of the head of the UN on youth Ahmad Alhindawi sure that young people can influence the future of the planet.
"As voters, let's vote for those who will fight climate change, as innovators, let's participate in promoting clean renewable energy, as consumers, let's exercise environmental responsibility, as activists, let's using social networks to tell the world that young people make "green" choices in terms of development and economy of the future," said Ahmad Alhindawi at the Paris conference on climate change in 2016.
He recalled the words of the Secretary-General that the current generation is the first generation that can eradicate poverty. But it may be the last generation, who still have a chance to stop global warming.
The candidate of the Nobel prize Greta Thunberg, speaking at TED in 2018, said that the climate crisis is already solved. Now there are all the facts and solutions. You only need to Wake up and change ourselves. Bold, decisive and informed rhetoric provoked a worldwide movement of strikes over climate change called #FridaysForFuture organized by students around the world March 15, 2019 (1.5 million young people in 123 countries).
Greta Thunberg has created a Legion of young climate organizers of strikes around the world that awaken people to change. Around the globe there are many other young people working to create a future in which they need.
Lauren Howland does not wait for adults that make a difference. 23-year-old girl - a representative of the indigenous Indian population. She is the co-founder of the International youth Council of indigenous peoples, which received the award named after Robert F. Kennedy in the protection of human rights in 2018 for the continuous work on environmental issues. Howland said that now young people around the world are more United than ever. They live in harmony with each other and with this planet. Understand that the struggle to save humanity from extinction in fact. They seek to change the collective consciousness of the inhabitants of the planet. They need a climate policy that is adopted and applied worldwide. It includes decisions that are being implemented in local communities.
Aeron of Clays — a young entrepreneur from Belgian Antwerp. He is working on creating nanotechnology solutions to obtain sustainable materials. They will help literally reverse global warming, improve health, increase energy efficiency and the quality of life, to restore the biosphere of the planet. With his team of Clays already produces products which can double the service life of textile, leather and footwear. This can reduce the amount of greenhouse gas emissions by 10 %. Currently, he is working to create environmentally friendly building materials.
Young Russian ecologist Artyom Akshentsev believes that the main environmental problem today — not the plastic waste and global warming. This soil degradation and overpopulation. And the situation is getting worse — despite the development of technologies to obtain higher yields per hectare of land.
Currently, Artem is a Junior researcher at the Institute of water problems Russian Academy of Sciences, where specializiruetsya on the study of the algae of extremophiles living in the drains of the Kamchatka geysers. Led by the First popular science library and the project Russian Travel Geek. Holds the position of Director of field laboratory "ECOS" Summer school, in which pupils are attached to ecology and the concept of sdgs and solves environmental problems on a scientific level.
I also want to mention young leaders-activists of our platform, especially want to highlight Kushal Naharki. Kushal constantly carries out environmental activities, involving children and young people. In my opinion, Kushal is a true example of a youth environmental leader. And even more pleased that these leaders are ambassadors of our platform a lot.

Sources:
https://www.un.org/sustainabledevelopment/ru/2015/12/молодежь-может-и-должна-сыграть-ключе/

https://fb.ru/post/recycling/2019/3/30/78883

https://theoryandpractice.ru/posts/11787-akshintcev