The summit of the Group of 20 leading economies in Rio de Janeiro has produced a joint declaration that, while not totally endorsed by one of the group’s members, succeeded in addressing most topics host Brazil had prioritized addressing: both ongoing major wars,

Set against a backdrop of political turmoil, it's going to be a big ask for the leading rich and developing nations to sign up to any meaningful declarations.

Brazilian President Luiz Inacio Lula da Silva opened a G20 summit in Rio by launching an alliance to curb world hunger, which he called a "scourge that shames humanity."The Global Alliance Against Hunger and Poverty marks an early summit success for left-wing Lula,