What can be done to significantly increase the adoption of cleantech and environmental education in schools?

Getting children to appreciate nature and teaching them the concepts of sustainability from a young age is perhaps the best way to make them contribute for a better planet. However, in most parts of the world today, effective environmental education is woefully lacking in schools. What are the frameworks, policies, tools and techniques that can be employed to make schools worldwide provide effective cleantech and environmental education to millions of children?

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