One of the events at the 2019 Battles of Ideas Festival in London will discuss whether the world needs a government: 

Can we really solve our global problems without global political institutions? Are the various crises we face today so great that perhaps we need to put national interests to one side? What are the practical problems with making sure future global institutions are accountable to the world’s people? Could a world government finally give us the means to pursue the common interests of humanity or could it be a vehicle for exercising great power without accountability?

Panelists are Andreas Bummel, Ian Crawford, Mary Kaldor and Tara McCormack.

Event website