Methane gas bubbles trapped below the surface of a frozen stagnant pond.

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Methane gas bubbles trapped below the surface of a frozen stagnant pond created in an old civic amenity tip.

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Size: 5015px × 3343px
Location: Howardian Local Nature Reserve, Penylan, Cardiff, S Wales, UK, GB, Europe
Photo credit: © Alan J Jones / Alamy / Afripics
License: Licensed
Model Released: No

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