He said economic development in these regions has pushed people toward urban areas, creating a rural labor deficit. That pressures many farmers to mechanize and consolidate their lands, which is not always easy for small farms.
“The smaller farms, typically they get squeezed out,” he said, “because they're not top priority, because they don't have access to all the services.”
Mehrabi said this could lead to a drop in food prices as farms become more streamlined and efficient. But this consolidation is not immune to the shocks of climate change and diminishing crop variety. If a company only has one big farm with one type of crop, a heat wave or bad soil in that area could have severe ramifications on that crop’s price and availability on the global market.
“Climate change is the big problem today, but the biodiversity is right there next to it,” he said. “We've seen massive biodiversity loss in agricultural landscapes as the size of the farms increases.”
Those farmers who remain are expected to continue feeding the growing global population, which could lead to increased mental health problems for farmers.
“You end up having half the number of people feeding more of the population than we have in the world today,” Mehrabi said. “That's a lot of pressure on farmers to have that. And there's a lot of pressure from society to deliver on that.”
Mehrabi remains an optimist, and he said this data allows people to think proactively about the agricultural transition. He recommended improving farmers’ access to services and support so they feel more empowered to defend their needs to agribusiness, retailers and the government.
But the most fundamental solution, he argues, would be planting a variety of crops, as it is a promising strategy in the face of a changing climate.
“The easiest answer is a couple of words. It’s 'diversify food systems,'” he said. “We need to diversify our production systems so that [they are] less susceptible to shocks.”
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