Abstract:
Europe's future depends on a healthy planet. Urban green spaces play a key role in improving the liveability of our towns. Current climate and environmental challenges require an urgent and ambitious response. Climate change is affecting our society in many ways. Rapid, and widespread reduction of greenhouse gas emissions and achieving a net level of greenhouse gas emissions CO2 equal to zero have the potential to limit climate change and its effects. That is why, lately, the world is fighting in various forms for the creation of new green spaces, especially in the most crowded urban areas. This paper aims to present a review regarding the green walls used to reduce the buildings energy consumption, to increase the phytoremediation of air pollutants, to increase the biodiversity and to contribute to life quality in the cities by their recreations and aesthetic functions.