Book excerpt: The book emphasizes the understanding principles and utility of renewable energy and green technology to minimize dependency on fossil fuels in the era of global development. The book focused on recent trends in renewable energy with principles and practices in relation to climate change This book highlighted advanced approaches for sustainable use of renewable energy sources The methodology for various aspect of renewable energy are illustrated with figures and charts Uses of agriculture and forestry sector as a green technology are also illustrated/mentioned This book potentially will helpful for policymakers in the field of renewable energy