Costa Rican academics are pioneering the growth of crops on freshwater lakes as a way of addressing food shortages
Hunger and nutrition will feature prominently at the G8 summit in Northern Ireland in June, in keeping with the renewed interest in agriculture, especially in Africa, where investors are eyeing the potential of vast tracts of land.
But as experts note, water is the most severe impediment to increasing food production and security.
Ricardo Radulovich, professor of water science at the University of Costa Rica, points out that in Africa irrigation is a very limited option, due to lack of water, and rain-fed agriculture is affected by prolonged dry seasons and rainfall variability during the rainy seasons. A case in point is the Sahel in west Africa, where drought has grown increasingly frequent and where emergency aid was needed last year to forestall famine.[view whole blog post ]