Red snow celebrates summer in Antarctic autumn


You can see more spectacular pics on the Facebook page of an Ukrainian Antarctic research station, but they are copyrighted.

The red colour is an algal bloom. This is perfectly natural in high summer, and the algae are food for many beasties. While I am glad for them to have an extra feast, I am not at all pleased at a positive feedback loop: white snow reflects more light. The red areas absorb 13% more energy, leading to more melting.

The extra trapped warmth allows the algae to spread…

About Dr Bob Rich

I am a professional grandfather. My main motivation is to transform society to create a sustainable world in which my grandchildren and their grandchildren in perpetuity can have a life, and a life worth living. This means reversing environmental idiocy that's now threatening us with extinction, and replacing culture of greed and conflict with one of compassion and cooperation.
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2 Responses to Red snow celebrates summer in Antarctic autumn

  1. pendantry says:

    It’s not just algal blooms that cause ice and snow to melt faster; have you heard of the Dark Snow Project?

    Liked by 1 person

    • Dr Bob Rich says:

      I am aware of the quite spectacular effects of soot and stuff on snow, but the algal decoration was new to me.
      Maybe the COVID19 will reduce precipitated pollution in the Arctic?
      🙂

      Liked by 1 person

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