**Abstract**

Water-Food-Energy (WFE) Nexus regulates biosphere and irrespective of alphabetical or chronological order, it must have synergy for the sustainability of life. Population, Pollution and current Pandemic- COVID has made it vivid to entire scientific community that unless we strengthen this trio, our progressive humanity is sure to collapse. Humic Substances (HS), the originator of the life has promising utilization in almost every sectors of life, reinforcing WFE Nexus. This chapter dedicates to novel unearthed HS, Dry Cowdung Powder (DCP) and its unique contribution in sustaining the triangle of life, WFE. DCP has been employed as humiresin for bioremediation of wastewater containing heavy metals and radionuclides. The known candidate for Biorhexistasy, DCP increases soil fertility, minimizes erosion and acidification. It is also extensively explored as biofuel, green and clean source of energy. 'Nothing of Nature is a Waste' and 'Waste is a Commodity' aptly describes DCP, the sustainer of WFE Nexus.

**Keywords:** Sustainability, Dry Cowdung Powder, Unearthed Humus, Humiresin, Biorhexistasy, Biofuel

#### **1. Introduction**

The biosphere or Earth's layer of Living Matter harbors living organisms that interact with each other as well as with the soil, water, and air. The necessity of the entire living biota is based on Water-Food-Energy (WFE) Nexus, exceptionally governed by our Mother Nature. In the past few centuries, rapid industrialization has overexploited pristine ecosystems and led to a steady decline in the nutrient quality of ecosystems, flora, and fauna. The plume of population and pollution has created a 'water-food hungry scenario' but the 21st century socio-political race has created 'energy hungry' attitude too. The high rate of resource consumption has posed an unintended and negative impact not only on the entire ecosystem but also on global geopolitical harmony. Almost every nation has gobbled up their own abundance of natural resources due to utilitarian attitude and drive of being energy independent. This has compromised the holistic functioning of the environment and given rise to deprived soils and declining fauna.

Present resource crisis is so all-prevailing that, both developed as well as developing countries have come to the common conclusion of Sustainability through Socio-Scientific Integrity for the smooth survival of todays and tomorrows.

Nonetheless, current pandemic Covid-19 has sparked SOS to refurbish the global policies of governance and accelerate scientific eclecticism towards sustaining the WFE Nexus by participating in Sustainable Ecosystem Management (SEM). The philosophy of SEM is pegged on adaptive management and holistic consideration of ecological resources. It is environmentally sensitive, ecosystem, and eco-regional based [1]. It emphasizes on balancing long-term sustainability of ecosystems with human needs and moves beyond compartmentalized focus on some species and regions, to holistic management of natural resources amidst hindrances of rising resource of demand, population increase, and climate variability [2, 3].

The aim of this study is to evaluate, equate and exercise the application of novel humiresin- unearthed, ecology-economy friendly, zero-waste prototype Dry Cowdung Powder (DCP) towards sustaining WFE Nexus and ecosystem.
