Question

Define polar amplification

Answer 1

Is the phenomenon that any change in the net radiation balance tends to produce a larger change in temperature near the poles than the planetary average.

Answer 2

Polar amplification is the phenomenon that any change in the net radiation balance (for example greenhouse intensification) tends to produce a larger change in temperature near the poles than the planetary average.
and that what it means.and you can look it up too if your that stupid