Water Resources and Sustainability
Research Guide

The Water Poverty Index integrates physical water availability, access, management, capacity, and use into a single metric for regional assessments. Sullivan (2002) developed it in 'Calculating a Water Poverty Index' to evaluate water stress holistically. It supports sustainability planning by combining socio-economic and environmental factors.

Water footprints measure total freshwater use tied to consumption patterns across production and supply chains. Hoekstra and Chapagain (2006) detailed this in 'Water footprints of nations: Water use by people as a function of their consumption pattern,' covering domestic, industrial, and agricultural sectors. The approach reveals hidden water demands in traded goods.

An ecological footprint quantifies the land and resources a city requires to support its population and waste. Rees (1992) introduced it in 'Ecological footprints and appropriated carrying capacity: what urban economics leaves out' to highlight appropriated carrying capacity. It exposes limits ignored by standard urban economics.

Water scarcity assessments have advanced from simple indicators since the late 1980s to multifaceted global models. Liu et al. (2017) reviewed this progression in 'Water scarcity assessments in the past, present, and future,' covering historical, current, and projected methods. These tools address threats to livelihoods and development.

Carrying capacity defines environmental limits to economic growth and population. Arrow et al. (1995) explored this in 'Economic growth, carrying capacity, and the environment,' linking it to natural capital depletion. It informs policies balancing development with ecological constraints.