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Strategies & Market Trends : 2026 TeoTwawKi ... 2032 Darkest Interregnum -- Ignore unavailable to you. Want to Upgrade?

To: Maurice Winn who wrote (148151)	4/29/2019 4:42:01 PM
From: Snowshoe	1 Recommendation Recommended By ggersh Read Replies (2) \| Respond to of 217786

re "My interest was piqued because the ground is obviously not permanently frozen as it's fully covered by trees and whatnot." Uh-uh, that's a misconception! The summer sun shines 24 hours a day at that latitude, creating a thin "active layer" above the permafrost that thaws out in summer so plants can grow. Millions of birds migrate to the high arctic every summer to feast on the vegetation and insects that proliferate madly for a few brief months. Here's a bit of detail from Google... Permafrost (Extent) en.wikipedia.org Permafrost is soil, rock or sediment that is frozen for more than two consecutive years.In areas not overlain by ice, it exists beneath a layer of soil, rock or sediment, which freezes and thaws annually and is called the "active layer".[13] In practice, this means that permafrost occurs at an mean annual temperature of -2 °C (28.4 °F) or colder. Active layer thickness varies with the season, but is 0.3 to 4 meters thick (shallow along the Arctic coast; deep in southern Siberia and the Qinghai-Tibetan Plateau).