Last year too much rainfall led to bad harvests, and this year more drought-like conditions could produce the same outcome again.

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The ultimate cause is the bad harvests in the US and other countries as a result of the extreme weather this summer.

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So even if humankind does not go to war over bad harvests, Paskal may be right when she contends that climate change may end up altering the global map.

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He said the season had been challenging for other crops as well not just potatoes, but the main concern for growers was just how bad harvests were going to be.

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Let us start at the beginning: the harvests in certain parts of the world this year will be bad.

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