Frozen methane bubbles under lake surface - GIF
Frozen methane bubbles under the frozen surface of Lake Baikal.
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Previously:
https://www.homemadetools.net/forum/...266#post126678
https://www.homemadetools.net/forum/...504#post135847
https://www.homemadetools.net/forum/...024#post195048
https://www.homemadetools.net/forum/...943#post194738
https://www.homemadetools.net/forum/...932#post164202