when did we really start noticing a big drop in biodiversity?



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    Using instances of extinction as a means of measuring a decline in biodiversity, the most recent era of significant biodiversity loss began around 1800, where the world’s extinction rate became 50 times greater than its background rate (the rate in amount of extinctions per species per 1000 years before 1800). The modern trend of biodiversity shrinkage began around 1800 but has gotten significantly worse since the 1950s. 

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