Methane bubbles under frozen Abraham Lake, Alberta, Canada

size: 513440
sha1: ed8dca6d055276df421700b931c750a6fd6f3f04
sha256: 2e2b9becc4b95c0faee7cd6c5c1185ed360bd85a5a2e368b6a841eab2396dc6a
sha256 base64: Liub7MS5XA+u581sXBGF7TYL2FpaLjaLaoQeqyOW3Go=

size: 428856
sha1: 6789b5e6559a38f73031d41539bc4c6e267ab7a9
sha256: b445ba35eeb2d9a8cce2bc1c87d8b03ea448451f0a17c7a44144105c4e3ef8ef
sha256 base64: tEW6Ne6y2ajM4rwch9iwPqRIRR8KF8ekQUQQXE4++O8=