In northern Ghana’s Yiwagu community, farming has long been the backbone of local livelihoods. But in recent years, harvests — especially of shea nuts — have dwindled. Locals blame the decline on erratic rainfall and rising temperatures,…

In northern Ghana’s Yiwagu community, farming has long been the backbone of local livelihoods. But in recent years, harvests — especially of shea nuts — have dwindled. Locals blame the decline on erratic rainfall and rising temperatures,…