global warming is increase in the The average temperature of the earth release of carbon dioxide and other greenhouse gases is the major cause of global warming one of the impacts of global warming is melting of ice glaciers how does melting of ice glaciers affect the animal population of Polar regions how can the problem of the global warming be cured make a diary entry answering these questions
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In snow-covered areas, warming could increase the occurrence of repeated freezing and thawing which could lead to the formation of an ice crust thus preventing animals from eating grasses and mosses and sometimes even killing the plants. Lemmings, musk ox and reindeer/caribou are all affected. Dramatic population crashes resulting from this phenomenon have been reported increasingly frequently over recent decades.
Mild weather and wet snow lead to collapse of spaces between the frozen ground and the snow where lemmings and voles live and forage. Furthermore, when the surface of the snow melts and re-freezes the resulting ice crust reduces the insulating properties of the snow pack that is vital to the survival of these animals. Declines in their populations can in turn lead to declines in animal population that feed on them, such as snowy owls, skuas, weasels and ermine. When lemming populations are low, more generalist predators, such as the Arctic fox, switch to other prey species such as waders and other birds, increasing pressure on those populations.