Washington state apple growers are harvesting the second-largest crop in history, but it appears there won't be enough workers to get the fruit off the trees quickly enough. The next few weeks are when the bulk of the region's fruit is picked. The labor shortage comes as apple prices are high.
High food prices have often been cited as a factor behind mass protest movements. But a group of researchers say food prices can actually be used to predict when social unrest will occur. And according to their mathematical modeling, we've hit the threshold for more waves of riots.
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