Re: umbrellas was: hiking in heat

In article <30lg92pv0s1el1si3bvdeo0755aguug7v2@xxxxxxx>,
Galen Hekhuis <ghekhuis@xxxxxxxxxxxxx> wrote:
On 19 Jun 2006 23:12:49 -0700, eugene@xxxxxxxxxxxx (Eugene Miya) wrote:
.... thermo karst....

What is "thermo karst"?

A place where the permafrost becomes less than permanently frozen.
The water then leaks out and the ground collapsesin the tundra.
Expect to see more of that in the future in the far North.

--
.

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