In the units of 1 million km^2, what is the difference of tundra during the Holocene ad last glacial maximum?



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    According to a study by the Quaternary Environments Network, at the last glacial maximum (about 20,000 to 18,000 years ago, roughly the end of the last Ice Age) there was a total of 15.76 million square km of tundra environment on the Earth, spread across three different categories. In the present (Holocene) era, they place the number at just 1.2 million square km, in only one category (forest tundra).

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