Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Dogged by repetition, plagued by inconsistency

The author would have done well to refrain from extensive repetition of facts for in the end their use results in inconsistencies and make for annoying reading. The author probably refers to the great famine and the dates associated with the famine 500 times in different contexts. One is left with the impression that there were some scorching summers, some frigid ones, some dry ones, some rainy ones, etc. In the end one can not really discern what the weather was like during those years and how it contributed to the famine. The inconsistencies diminish the authors otherwise laudable attempts to show patterns of climate change and weather that influenced culture and civilization. A fascinating topic, but poorly executed book.