Science has already made the link between deforestation of the amazon basin and decreasing precipitation in the southern parts of Latin America. See here or here where Antonio Nobre presents a summary of his literature review on that topic. Now this connection is harshly being impeded into everyone’s life in São Paulo, where water scarcity has lead authorities to curb water to 2 days a week, see here (germ.) But deforestation, droughts and climate change aren’t the only reasons. Mismanagement of watersheds, corruption and the absence of a market based price signals for households are most probably more significant contributors to this summer’s water scarcity in southern Brazil.