The <scp>L</scp>ast <scp>P</scp>ermafrost <scp>M</scp>aximum (<scp>LPM</scp>) map of the <scp>N</scp>orthern <scp>H</scp>emisphere: permafrost extent and mean annual air temperatures, 25–17 ka <scp>BP</scp>

This paper accompanies a map that shows the extent of permafrost in the Northern Hemisphere between 25 and 17 thousand years ago. The map is based upon existing archival data, common throughout the Northern Hemisphere, that include ice‐wedge pseudomorphs, sand wedges and large cryoturbations. Where ... View More