Book excerpt: This book comprises select papers presented at the International Conference on Trends and Recent Advances in Civil Engineering (TRACE 2020). This book covers papers on contemporary renewable energy and environmental technologies which include water purification, water distribution network, use of solar energy for electricity production, waste management, greening of buildings and air quality analysis. In all, twenty-three papers have been selected for publication. It is believed that this book will be useful to a fairly wide spectrum of audience like researchers, application engineers and industry managers.