ice albedo feedback
Quick Summary
The ice-albedo feedback is a positive feedback mechanism in climatology that amplifies global warming. Ice and snow have a higher albedo, meaning they reflect more incoming solar radiation back into space. As global temperatures rise and ice cover decreases, darker surfaces like land and water are exposed. These darker surfaces absorb more solar radiation, leading to further warming. This absorption of heat causes more ice to melt, creating a self-reinforcing cycle of warming. This feedback is more significant when there is extensive ice cover, such as during ice ages, and less impactful as global temperatures rise and less ice is available.12
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