We need to abandon the water stress index as a way of defining water scarcity and insecurity in Sub-Saharan Africa, as it fundamentally misrepresents current and future water crises in the region.

Moody’s, a credit-rating agency, says its liquidity-stress index, which tracks the cash position of heavily indebted American firms, shows they are feeling as pinched as at any time since late 2002.

The stress produced during the process of drying had a certain relation with moisture gradient, shrinkage, moisture and stress index.