Brazil's President Luiz Inacio Lula da Silva insisted this week that there are no remaining obstacles to signing the EU-Mercosur trade agreement next month after more than two decades of negotiations. Speaking on the sidelines of the G20 summit in South Africa, Lula said the deal would represent "possibly the largest agreement" in global trade, citing both blocs' nearly 722 million population and $22 trillion in gross domestic product (GDP).