This book explores how plants can help us build a more secure, healthy, and climate-resilient future. It highlights the importance of conserving plant diversity and using traditional knowledge to improve food systems in the face of climate challenges. The chapters cover a wide range of topics-from climate-smart agriculture and the use of wild and traditional food plants to the role of algae and hemp as future food sources. It also includes case studies from different regions like Pakistan, Morocco, Egypt, and Saudi Arabia, showcasing local knowledge, conservation efforts, and the value of native plants. Some chapters discuss how biodiversity links to health, focusing on food plants that can help fight diseases and improve nutrition. This book is a valuable resource for students, researchers, environmentalists, and professionals working in agriculture, climate change, ethnobotany, and food systems. It is especially useful for anyone interested in sustainable development, plant conservation, or how traditional knowledge can help solve today's global challenges.