Permafrost by permafrost. Of this area slightly more than half is underlain by continuous permafrost, around 20 percent by discontinuous permafrost, and a little less than 30 percent by sporadic permafrost. Most of this area is found in Siberia, northern Canada, Alaska and Greenland. Beneath the active layer annual temperature swings of permafrost become smaller with depth. The deepest depth of permafrost occurs where geothermal heat maintains a temperature above freezing. Above that bottom limit there may be permafrost, whose temperature doesn't change annually—"isothermal permafrost". Permafrost typically forms in any climate where the mean annual air temperature is less than the
Keith Peterson and Director until 2002. The Kitikmeot Corporation is the wholly owned Inuit Birthright development corporation of the Kitikmeot Inuit Association. They invest land claims payments in business ventures to create economic wealth for Kitikmeot Inuit. From 1991 until 2004 Peterson provided political, social and business advice to the Kitikmeot Inuit Association. He was the KIA's lead negotiator for benefits agreements with Northwest Territories and Nunavut based mines, including Echo Bay Mines (Lupin Mine), Tahera Diamonds (Jericho Diamond Mine), Miramar Gold Mine (until he was elected MLA), BHP Ekati (Ekati Diamond Mine), and Diavik Diamond Mine. He was a member of