What could be the cause of the gradual decrease in sea ice coverage and thickness in the Arctic?
The primary cause of the gradual decrease in sea ice coverage and thickness in the Arctic is believed to be human-induced climate change. The burning of fossil fuels and other human activities have led to an increase in atmospheric greenhouse gases such as carbon dioxide, which trap heat in the atmosphere, causing temperatures to rise.
As the Arctic warms at a much faster rate than the rest of the world, it leads to the melting of sea ice. Changes in ocean currents and atmospheric circulation patterns are also thought to be playing a role. Additionally, natural factors such as changes in the amount of solar radiation, volcanic eruptions, and natural variations in ocean currents and winds can also impact Arctic sea ice.