Antarcticseaice experiences record low extent for the second time in 5 years
on April 19.
The causes of the variability of Antarctic sea ice are complicated, and various mechanisms have been proposed in recent years, but there is no scientific consensus and the phenomenon remains under-theorized, with a great deal yet to be explored.
There is also an increase in overall infrared radiation and visible light as a result of a positive feedback of albedo and temperature. Albedo describes basically the"whiteness" of a surface. The whiter it is, the greater the reflection of such radiation, and the darker, the greater the absorption.
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