Trees are one of the most important elements of the natural environment that maintain the ecological balance and play an important role in the natural environment as they interact with various forms of climatic, terrestrial, water and vital environmental elements and work to protect the environment with all its elements. The research aims to study the use of plants irrigated with treated sewage water in capturing carbon dioxide and mitigating climate change. The research was conducted on the tenth of Ramadan city in order to identify the current situation of the current available water resources in Egypt and emissions of carbon dioxide, to assess the current situation of the quality of treated wastewater in the study area, reference assessment of air quality, identification of the area and types of landscapes before and after the use of treated wastewater in irrigation. Furthermore, A design was proposed with the number of trees and plants that can be planted to absorb the treated water and emissions together with the environmental, financial and economic evaluation of the proposed design. The study relied on published and unpublished data and statistics issued by the Tenth of Ramadan Authority, the Ministry of Environment, the Central Agency for Public Mobilization and Statistics, and the Ministry of Water Resources and Irrigation.