There are many alternatives, including global and semi-global SIM cards that work almost everywhere or in the slate of countries you are likely to visit.
The programme, which provides a UNESCO Global Network on Water and Development Information for Arid Lands was established in 2004 to strengthen the global capacity for management of water resources in arid and semi-arid regions.
These 10 competitors were selected through an online contest that showcased 25 semi-finalists of the fellowship program run by Echoing Green, a global nonprofit that provides seed funding and technical assistance to emerging social entrepreneurs.