According to the Ecological Footprint (EF) index, we are consuming one year's worth of the world's renewable resources within the first eight months of every year in recent times. So, during the next four months of the year, the world is living beyond its ecological limits. The consequences of our accumulating ecological debt result in global climate change, species extinctions, insecure energy supplies, water shortages and crop failures. This book is an endeavor to reorient the community towards practicing optimum consumption and environmental protection.