Fueled by climate change, Zimbabwe's erratic harvests cause farmers with HIV to struggle

Tarisai Mubhoyi, 43, farms her field of ground nuts that she's been able to grow despite the drought.

Mwenezi, Zimbabwe (CNN)Jemitias Denhere shakes his head as he explains why, despite being a specialist in soil management and crop production, he specializes in beef livestock.

The district agronomist -- plants specialist -- owns 27 hectares of land in the Mwenezi area of southern Zimbabwe, a particularly arid location. Here, farmers endure extreme weather challenges such as drought and flash flooding -- and, thus, some of the highest food shortages.
His cattle can exist on the little grass that remains during dry times, but to produce crops without irrigation is risky -- so he decided against it. "One year, you win; one year, you will fail; repeat," he said.
But over the past five years, the situation has become worse.
    One of the rising uncertainties climate change is bringing to the country: The rains have come much later, with the November rainy season beginning as late as January -- and when it comes, there's less of it, sometimes falling for just one day.
    "We're experiencing the worst style of drought. If we receive rains, it will be like a cyclone: very violent, too windy. Very erratic. So you cannot bank on it. Things are changing every day."
    As a result, maize, the staple diet of rural Zimbabweans,