Book excerpt: This book covers several innovative alternative livelihoods based on mangrove floral resources with their respective SWOT analysis. True mangrove flora and their associates in Indian Sundarbans are noted for their wide spectrum of ecosystem services in which livelihoods of the region are one of the most important components. Many alternative mangrove-centric livelihoods are in the pipeline of startup. However, due to difficulty in marketing and lack of clarity over ownership of natural resources, the values of the mangrove-based products have not been fully realized. Natural resources of several categories in Indian Sundarbans like oysters, seaweeds, medicinal mangrove flora, vitamin-rich mangrove fruits, etc. are still lying untapped. These untapped resources have been spun with the livelihood sectors of the Sundarban people backed up with sound business models to make the venture sustainable. The carbon foot prints associated with each of these livelihoods have been studied in details and steps have been suggested for net zero carbon livelihood programmes along with their sustainability. The book provides the readers about several mangrove-based cutting-edge researches and technologies in the domain of climate resilient livelihood, which if implemented can lead to food and economic security of the region.