Fig. 1: Methodology for the construction of the Global WEF Index
Assessing the security of the water–energy–food nexus is a topic of great importance, which allows determining the situation of each resource to implement actions for sustainable management of these resources in today's society. For this reason, a systematic procedure is proposed to evaluate the synergies of the water–energy–food nexus in a large region that is divided into subregions that allow considering their interactions. The new procedure considers the availability, accessibility and regional interdependence of resources while annexing economic and social aspects. A composite index called the WEF Global Index is developed, which involves the WEF nexus index and has nine indicators that evaluate the availability, accessibility and regional interdependence of each resource in the water–energy–food nexus. This new index considers the Gross Domestic Product per capita and the involved population. As a case study, the 32 states of Mexico were considered to assess the effects of the COVID-19 pandemic on the economy and the security of the water-energy-food nexus at the state level. For this, the composite index was evaluated in the years 2019 and 2020. The results show that from 2019 to 2020, the value of the global index increased in 13 states, in 21 states the security index of the WEF nexus increased, and in 9 states the GDP per capita index increased. On the other hand, the results indicate that in 11 states there was no improvement in the nexus security index due to the increase in water demand, which considerably affected the water availability indicator.
Raya-Tapia, A.Y., Cansino-Loeza, B., Sánchez-Zarco, X.G. et al. A systematic approach for assessing water, energy and food security during the COVID-19 pandemic: case study of Mexico. Environ Dev Sustain (2022). https://doi.org/10.1007/s10668...
- Research Article // Optimizing resilience at water-energy-food nexus
- Measuring the Water-Energy-Food Nexus // The Case of Latin America and the Caribbean Region
- Research Article // Recover the food-energy-water Nexus from COVID-19 under Sustainable Development Goals acceleration actions
- Publication // The water-energy-food nexus and COVID-19: Towards a systematization of impacts and responses