This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Aridity ice age vs early holocene vs modern. en During the Last Glacial Maximum years ago thermaldriven evaporation from the oceans onto continental landmasses was low causing large areas of extreme desert including polar deserts cold but with low rates of precipitation Greater precipitation today creates much different distribution