Is Ice Melt Altering NG Maps? | National Geographic

with the trend that we are seeing now

with the trend that we are seeing now it’s very likely that there will be a

it’s very likely that there will be a

it’s very likely that there will be a day within this century that there will

day within this century that there will

day within this century that there will be no ice in the Arctic there has been a

be no ice in the Arctic there has been a

be no ice in the Arctic there has been a drastic chance from the 1980s and early

drastic chance from the 1980s and early

drastic chance from the 1980s and early 1990s to the present the perennial ice

1990s to the present the perennial ice

1990s to the present the perennial ice cover in the 1980s was averaging between

cover in the 1980s was averaging between

cover in the 1980s was averaging between seven and eight million square

seven and eight million square

seven and eight million square kilometers in 2007 when there was this

kilometers in 2007 when there was this

kilometers in 2007 when there was this drastic decline it went down as low as

drastic decline it went down as low as

drastic decline it went down as low as 3.5 square kilometres and in 2012 we

3.5 square kilometres and in 2012 we

3.5 square kilometres and in 2012 we went down to almost three million square

went down to almost three million square

went down to almost three million square kilometers

kilometers

kilometers compared to previous editions of the

compared to previous editions of the

compared to previous editions of the Atlas the change in sea ice coverage

Atlas the change in sea ice coverage

Atlas the change in sea ice coverage that graphic portrayal that white

that graphic portrayal that white

that graphic portrayal that white polygon has significantly changed over

polygon has significantly changed over

polygon has significantly changed over time and in the tenth edition as you’ll

time and in the tenth edition as you’ll

time and in the tenth edition as you’ll see a significant reduction in area

see a significant reduction in area

see a significant reduction in area covered by ice on our Arctic Ocean plate

covered by ice on our Arctic Ocean plate

covered by ice on our Arctic Ocean plate we show two features of the different

we show two features of the different

we show two features of the different types of sea ice there’s the limit of

types of sea ice there’s the limit of

types of sea ice there’s the limit of multi-year ice and then the maximum

multi-year ice and then the maximum

multi-year ice and then the maximum extent of sea ice the maximum extent of

extent of sea ice the maximum extent of

extent of sea ice the maximum extent of sea ice will fluctuate annually with the

sea ice will fluctuate annually with the

sea ice will fluctuate annually with the seasons it’s generally decreases in the

seasons it’s generally decreases in the

seasons it’s generally decreases in the summer in increases in the winter so the

summer in increases in the winter so the

summer in increases in the winter so the maximum that we show it usually occurs

maximum that we show it usually occurs

maximum that we show it usually occurs sometime around March multi-year ice is

sometime around March multi-year ice is

sometime around March multi-year ice is ice that has been frozen for up to two

ice that has been frozen for up to two

ice that has been frozen for up to two summers and that is generally more

summers and that is generally more

summers and that is generally more stable and doesn’t change as much but

stable and doesn’t change as much but

stable and doesn’t change as much but the studies have shown that it has been

the studies have shown that it has been

the studies have shown that it has been steadily decreasing over the past

the warming that’s being felt in the

the warming that’s being felt in the Arctic is the greatest warming

Arctic is the greatest warming

Arctic is the greatest warming throughout the world if you lose the ice

throughout the world if you lose the ice

throughout the world if you lose the ice in the Arctic it doesn’t cause an impact

in the Arctic it doesn’t cause an impact

in the Arctic it doesn’t cause an impact of just the Arctic region which cannot

of just the Arctic region which cannot

of just the Arctic region which cannot be global