Dutch researchers have found that global water scarcity is more severe than previously understood. 

Traditional estimates have considered only the quantity of available water, neglecting its quality. 

They say this oversight has resulted in an underestimation of the true extent of water scarcity.

The researchers found that when water quality is factored in, 55 per cent of the global population does not have access to sufficient clean water for at least one month per year. 

This is a significant increase from the 47 per cent estimated when considering only water quantity. 

The research team employed advanced computer simulations to project future water scarcity, suggesting that by the end of the century, between 56 per cent and 66 per cent of the global population could be affected by water shortages. 

The study indicates that developing countries, particularly in sub-Saharan Africa, will be the most impacted.

To mitigate the worsening situation, the researchers emphasise the need for substantial reductions in water use and pollution. 

“Measures to cut our water use and stop polluting our water sources could help curb the effects of water scarcity on people and the environment in the future,” they concluded.

The full study is accessible here.