Warming temperatures have accelerated the thawing of Gelisols. This efffect is of particular concern because
A) Gelisols contain about half of the pool of global carbon in the form of frozen carbon dioxide and methane and their release into the atmosphere could further affect warming climate.
B) Gelisols are an important soils for growing speciality cold weather crops. The thawing of the Gelisols will adversely impact this lucrative market.
C) Gelisols are the youngest, least developed soils on the planet. Warming will further stifle the horizontal development of these soils.
D) as the permafrost melts, the meltwater will runoff, further contributing to global sea-level rise.
A
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