Question

Why is it difficult for scientists to predict the rate of warming that Arctic regions will experience?

Answer 1

Arctic regions are continuously warming up they are now thirty percent warmer than used to be in past 30 years. The rise in temperature of arctic regions will lead to melting of polar ice caps leading to increase in the sea level with more water in the sea more amount of it will converted to water vapor making the harmful radiations to enter earth atmosphere easily making earth much hotter. With decreased ice cover less amount of heat form sun is less is reflected and much of heat will be trapped in the earth atmosphere again making the earth atmosphere with soaring temperatures. Most of scientists believe that these actions are manmade, extensive use of fossil fuels and deforestation is main cause for the rise of temperature in arctic regions.

     Though scientists are affirmed that most of damaged to the arctic regions is done by humans but they are unable to predict the actual rate of damage cause by human activity as there is also natural variability of temperatures which can be caused by sun movements, most of scientist are unable to estimate the total emission of green house gases and aerosol emissions and scientist are also unable to ascertain the natural environmental influences apart from human activity like atmospherics conditions or volcanic eruptions. Incomplete understanding of the climate system also making the predictions of the climate changes difficult.