Scientists analyzed stable isotopes of oxygen in shell remains recovered from El Mazo cave
The so-called “event of 8.2 thousand.years ago" has been identified as the largest and most extreme climate event of the last 11,700 years, caused by the flooding of cold meltwater across North America. Which led to the stopping of the ocean circulation system.
The results of the study also revealed an increaseshellfish harvesting by humans, as evidenced by a decrease in the average size of shellfish. The authors concluded that the reason was the demographic growth of the population. At the same time, mining was carried out in dangerous coastal areas of the Atlantic Ocean, in which prehistoric people fled from the cold.
The analysis of mollusks is of great importance for research aimed at determining the impact of climate change on the marine environment.
The study also showed that the currentGlobal warming has and will have wide-ranging effects on human history, just as environmental fluctuations have had major effects on human populations in the past.
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