Technical advancements not only bring wealth to countries and regions but also bring responsibility to grow sustainably by forcing us to utilize all corresponding resources wisely. Sustainable growth could only be possible if scientists and engineers were worked together. This will pave way for further interactions with other stakeholders who too are important to find ways for complete solutions. Sustainable growth will only be achieved if the complex interactions among many processes were understood and the sustainability is considered in all those processes. Sustainability of fresh water and other resources as well as energy should be emphasized in technical and social advancements. Better management of catchments and cleaner production are important criteria for the sustainability of fresh water and other resources. Sustainability of energy depends on innovative applications of renewable energy sources. Chapters in this book cover a wide variety of environmental research topics ranging from advanced wastewater treatment technologies, biofuel production and salt aggregation to modern transport concerns. The book would be of great interest to scientists engineers as well as postgraduate and undergraduate students who are willing to contribute their part of the Sustainable Growth and hence the sustainable future.