Please enable JavaScript.

Coggle requires JavaScript to display documents.

4a. Human activity causes change within periglacial landscapes (Alaska),…

- - - - Flaring releases CO2 into the atmosphere
      - Methane is vented without burning into the atmosphere
      - Significant greenhouse gases and can contribute to an enhanced greenhouse effect
      - Higher levels of terrestrial radiation being trapped in the lower atmosphere , raising temperatures
    - - Urban heat island effect Barrow found that mean temperatures were on average 2.2 degrees celsius higher than in the surrounding rural area
      - Heat from domestic heating systems in poorly insulated buildings
      - Strong correlation was found between temperature differences and oil production rates in the nearby oilfield
      - Energy released to the environment by human activities affects geomorphic processes with 9% fewer days of temperature fluctuations around 0 degrees celsius since drilling began
  - - - A report into gravel extraction from a glacial outwash aquifer near Palmer found that ground water levels fell by more than a metre in an area extending over 2km from the extraction site