Question: The historic temperature rise in Arctic is a reminder of thepost global warming future. Explain the reasons for temperature rise and its implications.
Answer: The Siberia region in interior Russia has been experiencing heatwaves that has pushed the temperature way beyond normal. These conditions have brought cheers to the residents but it has worried scientists studying the effects of climate change.
Reasons for heatwave in the Arctic
The wildfires are stated to be the primary reason for the increasing temperature in the region. The heat generated from the fire has been spread wide due to the prevalent winds, causing ice to melt. The occurrence of wildfires is a serious issue in recent times.
- Greenhouse gases
The greenhouse gases such as carbon dioxide and other nitrates concentration has been steadily increasing from past years. This has accumulated over the region due to absence of carbon fixing agents such as trees. They have been responsible for an increase in local temperature.
- Absence of sea ice
Sea ice formation is one of the reasons for prevailing cold wave conditions in interior arctic. Due to lack of sea ice formation because of warmer sea temperatures, there has been no resultant cold wave generated. This has caused the temperature to rise.
Implications of heatwave in Arctic
- Permafrost thawing
Increasing temperature will melt the permanent frozen soil also known as thawing. This will result in damages to infrastructure due to ground sinking as well as cause disasters such as landslides and flooding.
- Release of trapped carbon
Due to the permanent frozen nature of the region, a large amount of organic carbon has been trapped beneath the surface of soil. Melting of the frozen soil will release the carbon into the atmosphere causing a further increase in global temperature.
Thus, it is necessary that Arctic retains its original conditions so that any alterations do not cause changes to global climatic patterns.