The Earth is sending letters to girls and boys around Europe to make sure her voice is being heard and to inspire them to collaborate in a common project to take action to protect our planet. The Earth wants everybody to take into account the beauty of nature and how we depend on it. And the importance of taking care of nature and The Earth proposes that the whole participants look around and think of sustainable actions to make our planet a better place for living. The letters can be received each term or every two months… Therefore, first of all, through these letters, the Earth invites us to know better our natural parks, bodies of water, flora and fauna and to propose to talk about nature and culture and health. Next, students in mixed international groups could discuss about how humanity is negatively impacting nature( waste of water, pollution and plastic, consumption and climate change) and propose what we can do to conserve nature in our countries and what common projects can be developed (natural European virtual guides, collaborative stories, collaborative campaigns, participate in cleaning a natural area in our countries, reducing consumption... ) Therefore, All the participants will collaborate together by using technology and communicating themselves to encourage our communities to take care and to enjoy our extraordinary planet called Earth.