TY - JOUR TI - A critical review on environmental impacts of renewable energy systems and mitigation strategies: Wind, hydro, biomass and geothermal AU - Sayad, E AU - Wilberforce, T AU - Elsaid, K AU - Rabaia, M AU - Abdelkareem, M AU - Chae, K AU - Olabi, A T2 - Science of The Total Environment AB - The annual growth of global energy demand and the associated environmental impacts (EIs) has an important role in the large sustainable and green global energy transition. Renewable energy systems have been attracting substantial economic, environmental, and technical attention throughout the last decade, while some have been in the market for almost a century. However, even renewable energy may negatively affect the environment, which is widely considered much less harsh than fossil energy resources. This, in return, requires more consideration and appropriate precautions to be taken. This work discusses the environmental impacts (EIs) of small and medium-sized wind, hydro, biomass, and geothermal power systems. The approach goes through all stages from planning and conception to construction and installation and throughout service life and decommissioning. For various circumstances and technically and ecologically viable guidelines for their effect on natural resources and wildlife, clear and comprehensive solutions have been given. DA - 2021/04// PY - 2021 VL - 766 SP - 144505 UR - https://www.sciencedirect.com/science/article/pii/S0048969720380360 DO - 10.1016/j.scitotenv.2020.144505 LA - English KW - Marine Energy KW - Wind Energy KW - Attraction KW - Changes in Flow KW - Collision KW - EMF KW - Habitat Change KW - Noise KW - Bats KW - Birds KW - Ecosystem Processes KW - Marine Mammals KW - Physical Environment KW - Human Dimensions ER -