Funny how often the climate change folks use the word "could". But I don't recall Newton saying "For every action there could be an equal and opposite reaction."
Or Einstein saying "E could equal mc squared".
Kind of makes me suspect that climate change science really isn't science at all.
Oklahoma State University initiated a farming program in 1955 in Ethiopia, and it was a great success. Ethiopia quickly became a net food exporter. Then, of course, the new Socialist government came along and decided that it knew better how to manage the land, and they've been infamous for starvation ever since.
Most global food shortages are NOT due to geography and geology, but are due to government and local thugs and the desire for some people to control all others. Zimbabwe was known as "the breadbasket of sub-Saharan Africa" for decades, and now they cannot feed themselves... again, not because of farming land or techniques, but because government "got involved".