Rocks, once a hindrance since they reduced arable land, have become an asset. Pedrina Pereira and João Leite used them to build four ponds to collect rainwater in a farming community in Brazil’s semi-arid Northeast.
The retention of rainwater which otherwise is lost at sea could be an excellent medicine against the advance of the desert from northern to central Chile, but there is no political will to take the necessary actions, according to experts and representatives of affected communities.
Pacific Island states are surrounded by the largest ocean in the world, but inadequate fresh water sources, poor infrastructure and climate change are leaving some communities without enough water to meet basic needs.
The first surprise on arriving at Abel Manto's farm is how green it is, in contrast with the dry brown surroundings. His beans and fruit trees seem oblivious to the persistent drought in the semi-arid hinterland of northeast Brazil, the worst in 50 years.