Here is my suggestion for the opening words for the chapter:
Environment and climate do not stop at borders, energy also crosses borders in a common Europe. But so far way too many things are done just on a national level.
We want to ensure that future generations will have a base for a life in freedom and dignity. A healthy environment, biodiversity, sustainable use of resources, and equal access to energy, food, and water are fundamental requirements for this. To ensure a safe future we want a fast transition to a clean, circular economy that reduces its environmental impact to net zero.