eniscuola.net - Sustainability

Water

Introduction

Water

For the World Health Organization no less than 50 litres of water per day are necessary for each individual, so that we can speak of acceptable conditions of life. The mean estimates indicate a consumption of 350 litres of water for a Canadian family, 165 for a European family and 20 litres for an African family. If significant changes are not introduced, in 2025 approximately 2/3 of the Earth’s population shall live in conditions of water poverty. The United Nations have assessed 40 litres as the minimum requirement of water as the objective of the mobilization of the World Water Day that takes place on the 22nd March every year.