But with some exceptions Africa's governments saw the new seeds and fertiliser as a way to secure political favour, not the food supply.

ECONOMIST: Economics focus

Critics say encouraging biofuels could prompt farmers, especially in poorer countries, to abandon food production in favour of growing fuel crops.

BBC: UK 'should end biofuel subsidies'

Mr Baker believes that in this climate the move to healthier options could work in McDonald's favour by making people feel that they are eating food that is good for them.

BBC: McDonald's tries for healthier image

With his songs Bafing Kul pleads in favour of justice, respect for human rights, equality, peace and love, food self-sufficiency, health and education for everyone.

UNESCO: International Women's Day

Campaigners in favour of genetically modified organisms (GMOs) hope that developments in this area will lessen public opposition to GM food.

BBC: 'Climate-proof' crop hunt begins