Analyze the following statements according to the article: ...
I. Essen was heavily affected by pollution, experiencing significant environmental degradation for the last century and a half.
II. In the Zollverein complex, old buildings have been remodeled into modern, sustainable and environmentally-friendly industries.
III. Although a cycling highway is under development and places to go hiking and be in touch with nature are now available, there are still challenges for people to access them.
IV. Once deemed biologically lifeless, fish and other animal species can only be seen in the River Emscher again due to its restoration, which took twenty years.
V. People have not been able to go in the Lake Baldeney since 2017, but this is about to change because of Essen’s green-and-blue approach.
The statements which bring only completely accurate information are: