Editing Microthermal (section)

==Boundaries==
In [[North America]], microthermal climates start north of Boston along the Atlantic seaboard then westward to just below the Great Lakes to the Midwest, the line then moves southward below the Dakotas, through the west near 40 latitude at the eastern edge of the [[Rocky Mountains]], then curving northward near the lowlands of the [[Pacific Ocean|Pacific]] coast, reaching the Pacific Ocean just south of [[Juneau, Alaska]].  In [[Asia]], the latitude at which these climates begin is several degrees farther south influence of the vast Siberian anticyclone, or high-pressure system, and in continental [[Europe]] the line actually runs longitudinally rather than latitudinally, cutting through central [[Poland]] after beginning north of the [[Arctic Circle]] along the Norwegian coast, thereafter moving diagonally across [[Scandinavia]].

The boundary between the microthermal and polar climate zones is farthest north in western Europe (actually within the Arctic Circle there), and farthest south near the northeast coast of Canada (at about 56° North latitude on the central coast of [[Labrador]]); it then trends northward across [[Canada]] before dropping south again as it courses through [[Alaska]].  Throughout most of [[Siberia]], the boundary tends to follow the Arctic Circle fairly closely.

In addition to having various summer temperature regimes, microthermal climates also differ from one another in how much [[precipitation (meteorology)|precipitation]] they receive &mdash; such climates may be [[humid]], [[Semi-arid climate|semiarid]] or [[arid]].  Most of the [[Gobi Desert|Turkestan-Gobi]] desert system has an arid microthermal climate, while the best-known example of the semiarid microthermal climate can be found in the "[[steppe]]s of [[Central Asia]]" immortalized by [[Russia]]n [[european classical music|classical music]] [[composer]] [[Alexander Borodin]].