Countries where people lack adequate access to land rights, water and energy - are among the worst performers in the annual Global Hunger Index (GHI). 'We find there is a definite correlation between these resources and food insecurity,' said Claudia Ringler, a co-author of this year’s GHI study, which was produced jointly by the International Food Policy Research Institute (IFPRI) and the NGOs Concern Worldwide and Welthungerhilfe.