Discuss three factors that increase ground settling due to thaw in Arctic regions

What will be an ideal response?


ANSWER: ?
A successful answer will include at least three of the following.
- In warm summer months, upper layers of permafrost will thaw naturally.
- Climate change is increasing the extent and duration of this summer warming beyond what is expected in the affected regions.
- Large areas of water in lakes and rivers can heat the ground, causing thaw in nearby areas.
- The removal of vegetation that maintains deep snow cover can expose permafrost to more heat.
- Forest fires can add heat directly to the ground, thawing permafrost.

Environmental & Atmospheric Sciences

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Indicate whether the statement is true or false

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