Secas no Nordeste do Brasil: origens, causas e soluções

Abstract

The drought in the Northeast Brazil has been object of many studies and debates. The theme is controversial, with lots of facets and has been under discussion for a long time. After the 1977 drought, that lasted three years and resulted in the death of hundreds of thousands of “nordestinos”, the search for an understanding of the problem and for possible solutions have been intensified. In that process participate - proposing solutions or simply saying - layman, experts, politicians and other. Many contribute and join new knowledge and visions, other, in smaller number, that don’t have clear vision of the problem, emit opinions and propose exotic solutions, that more confuses than helps. This article intends to contribute with a historical revision of as the subject it has been treated and it also presents a conceptual treatment, classifying the solutions and evaluating your efficiencies. The proposed solutions and practiced they collect the period powders dry of 1877 to the current date. Some are described proposed as: adaptation of camels; explosion of crystalline rocks for storage of waters; investments in the process of forecast of droughts; “açudagem” police and irrigation; water transfer from San Francisco river and climate prevision.