Brazil’s presidency of the G20 will end with limited results, as other members of the bloc turn a deaf ear to President Lula’s desire to lead the world in development.

As the world gears up for the 19th G20 Summit in Rio de Janeiro, global leaders will tackle pressing economic and social challenges. This year marks the African Union's first full membership in the G20,

G20 is the main forum for economic and financial cooperation -- areas increasingly tested by today's shifting geopolitics.