Based on the current rate of Antarctic ice growth, how long until an ice bridge forms between South America and Antarctica?

Lets start with a simplification – if you squint hard Antarctica is a circle. Antarctica, according to Wikipedia, is 14 million square miles. Sea ice this year covered 20 million square miles. So what is the radius of a 34 million square mile circle?

area = PI x radius ^ 2

so

(34,000,000 / PI) ^ 0.5 = 3289 miles

So the radius of our “circular” Antarctica is approximately 3289 miles.

According to Wikipedia, the distance between Antarctica and South America is 500 miles. http://en.wikipedia.org/wiki/Drake_Passage So we need to calculate, what is the perfectly circular volume of sea ice required to increase the radius by another 500 miles?

Using our area calculation,

Area = PI x radius ^ 2

Area = PI * (3289 + 500)…

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