摘要：Bad news certainly abounded in 2015, but the year ends with plenty of good perspectives.To start with, several events confirmed the pervasive feeling that the world is standing on itshead, at least in matters of the environment and international security. Global climate conditionsdeteriorated and religious fanatics launched new strategies of terrorist attacks, like thosein Paris on November 13. Religious extremists also surprised the world by establishing a significantterritorial base in the Middle East, in which terror reigns. A persistent situation of extremepoverty and large-scale hunger in some countries continues to contrast with the prosperity ofwealthier nations. Each continent is affected by regional and national environmental disastersas well as by episodes of political instability. In Brazil, the failure of a large tailings lake, neara mine located in Mariana, state of Minas Gerais, caused what is assuming the outlines of theworst environmental disaster recorded in the country.
