Questions and Assignments

Use the tools and the concepts learned so far to discuss and determine answers to the following questions:

  • What is permafrost? Where is it found?
  • What changes have been observed in permafrost characteristics in recent times?
  • What is the active layer of the soil? How is it affected when permafrost thaws?
  • Why is methane, a greenhouse gas, released into the atmosphere when permafrost thaws?
  • What are the possible impacts of permafrost thawing on the Earth’s climate?