The article is based on the inevitable importance of focusing on environmental problems in the face of natural disasters that have been experienced frequently in Turkey and in the world, especially in recent years. It focuses on the relations with the European Union, without ignoring the critical importance of Turkey’s adaptation to the Green Deal for future generations. Looking at the literature, it has been observed that other arguments on the subject do not attach due importance to the long-term costs of environmental damage. Within the framework of the focus of the article, the question of how and to what extent the effects of the Deal will be on the relations between Turkey and the European Union has been discussed. As a result of the discussion, it has been predicted that the relations between Turkey and the European Union would be positively affected, but similar to the Customs Union membership, despite the positive developments in the relations in the Green Deal, their contribution to the European Union membership process would be limited. The foresight of the article; the extent of the new dynamics that the Green Deal will bring to the relations, the inferences made from the similarity with the example of the Customs Union in the past, the benefits that the reconciliation will bring and the difficulties it will cause have been tested. In the face of the limited effects on the European Union membership despite the steps Turkey has taken to comply with the Deal, suggestions have been made to increase the future benefits of the agreement.