It is midday in Barekese, a farming community in Ghana's Ashanti Region, about 300km from the capital, Accra.

As the sun beats down, Philip Anane, 50, walks through his cocoa farm, stepping on dried brown leaves scattered beneath the trees.

His crops look pale, malnourished, and infected. "I farm because it's what I know-what we grew up doing," he says, inspecting the leaves. "I've invested all my money in this farm, but I've never gained.

At the end of every season, the money I make is less than what I put in." Anane pauses to point towards another part of the farm. "I've been a cocoa farmer for almost 20 years, but there's nothing to show for it.