Declining arctic sea ice is a component of enhanced climate change, impacting the lives of people. As the arctic sea ice melts it will form several positive feedback loops such as decreasing albedo, thawing permafrost, and increasing ocean levels. This contributes to an overall increase in global average temperatures, creating countless changes to our planet.
Albedo is the amount of solar energy reflected from the Earth back into space. Earth has an albedo rate of 30%. Higher albedo is equivalent to an increase in reflectivity that raises temperature in the atmosphere. Low albedo cools the atmosphere giving a positive feedback.
Weather patterns bring different air temperatures to the arctic region, these have “gradually increased over the last fifty years, leading to reduced thickness of first-year ice at the start of summer”
Sea ice cover in the Earth’s arctic regions is threatened by human induced climate change