This book introduces a variety of the latest researches that are related to smart devices, machine learning algorithms, and the Internet of things that are applied for a sustainable environment. These recent technologies cover all fields including agriculture, transportation, smart grid, smart building, and others. In addition, IoT has provided an innovative vision that is completely alternative to the conventional methodologies: the new approach comes in the form of a single-component system that can be connected to the network and can incorporate smart policies. As a consequence, the covered subjects encompass smart system design and control, networking and machine learning, environmental monitoring and surveillance, smart meters, authentication and authorization, ensuring private data security, software solutions, and systems, among others. This book covers subjects that are related to the Internet of Things and smart used tools and methods for fighting environmental problems. Therefore, it discusses recent ideas that are not covered by other competitor books. This book is different because it can be a reference for researchers, professionals, and students in both smart thinking and environmental domains.