Everlyne Wanjiku, a single mother of five, has earned a living selling vegetables in the sprawling Kibera slum in Nairobi, Kenya, for over three decades. And even though her earnings were meagre, she was able to provide all her children with a tertiary education. But now, like her many fellow poverty-stricken slum dwellers in this East African nation, she is feeling the pinch of the high cost of food and other commodities, which have skyrocketed globally.