<human>:  How much money would it take to end world hunger?
<bot>: The Copenhagen Consensus estimates that it would take about $2.6 trillion to end world hunger. This is because of the high cost of agricultural production and the low income levels of the majority of the world’s population. The world spends about $1.3 trillion on food aid each year, but this does not go very far. The world needs to invest in agriculture and find ways to make farming more efficient, which would reduce the cost of producing food.