What are the possibility causes of the less extension of the Arctic ice?
The warming atmosphere along with new weather pattern extremes is causing Arctic sea ice to melt at an alarming rate—12% per decade—that suggests the Arctic will be ice-free by 2030.
The impacts of dwindling ice cover in the Arctic are far-reaching, from species endangerment to enhanced global warming, to the weakening or shut-down of global ocean circulation. Losing sea ice has knock on effects for climate.
One of the most direct consequences is that losing sea ice changes something scientists call albedo. Albedo is a measure of how well the earth's surface reflects sunlight. Scientists is concerned about, rather than how much of the sea is covered in a thin layer of ice. Over time, sea ice reflects the fast-changing circumstances of weather. It is driven principally by changes in surface temperature, forming and melting according to the seasons, the winds, cloud cover and ocean currents. In 2010, for example, sea ice extent recovered dramatically in March, only to melt again by May. Sea-ice is subject to powerful short-term effects so while we can't conclude anything about the health of the ice from just a few years' data, an obvious trend emerges over the space of a decade or more, showing a decrease every year of The Extent of Arctic Ice. When the sea ice diminishes, more heat passes into the oceans. That heat melts the thick ice and speeds up the melting of thinner sea ice, which in turns allows more heat to accumulate in the oceans.
In the Arctic, temperature has increased at twice the rate as the rest of the globe, and could increase by another 8°C by the end of this century.
What are the possibility causes of the less extension of the Arctic ice?
The warming atmosphere along with new weather pattern extremes is causing Arctic sea ice to melt at an alarming rate—12% per decade—that suggests the Arctic will be ice-free by 2030.
The impacts of dwindling ice cover in the Arctic are far-reaching, from species endangerment to enhanced global warming, to the weakening or shut-down of global ocean circulation. Losing sea ice has knock on effects for climate.
One of the most direct consequences is that losing sea ice changes something scientists call albedo. Albedo is a measure of how well the earth's surface reflects sunlight. Scientists is concerned about, rather than how much of the sea is covered in a thin layer of ice. Over time, sea ice reflects the fast-changing circumstances of weather. It is driven principally by changes in surface temperature, forming and melting according to the seasons, the winds, cloud cover and ocean currents. In 2010, for example, sea ice extent recovered dramatically in March, only to melt again by May. Sea-ice is subject to powerful short-term effects so while we can't conclude anything about the health of the ice from just a few years' data, an obvious trend emerges over the space of a decade or more, showing a decrease every year of The Extent of Arctic Ice. When the sea ice diminishes, more heat passes into the oceans. That heat melts the thick ice and speeds up the melting of thinner sea ice, which in turns allows more heat to accumulate in the oceans.
In the Arctic, temperature has increased at twice the rate as the rest of the globe, and could increase by another 8°C by the end of this century.
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