Today, the world’s resources are not sufficient to sustain the needs of the current population. We should assist the nature in its regeneration. It is essential to build our towns in an environmentalist and sustainable manner. We should protect the nature, so that it may also protect us. The subject of environmental protection is barely mentioned within the town twinning studies. I believe that touching upon this subject, within the context of town twinning collaborations, would be of great use for the protection of our world.