For millions of poor farm families in sub-Saharan Africa, access to water makes the difference between hunger and a full belly, between a well-nourished child and one stunted by malnutrition, and between a productive livelihood and one mired in poverty.  For many, the long dry season is a trying time of one meal a day....

For millions of poor farm families in sub-Saharan Africa, access to water makes the difference between hunger and a full belly, between a well-nourished child and one stunted by malnutrition, and between a productive livelihood and one mired in poverty.  For many, the long dry season is a trying time of one meal a day....