The Aging of Lakes - part 18 of 23. After introducing geological and ecological factors of normal "aging" of lakes, the film zeroes in on how man is speeding up this natural process - showing examples of indiscriminate disposal of fertilizers, sewage, and - 4K stock video
1970s: Boat travels on river. River flows through city. Map with Lake Washington highlighted. Algae in Lake Washington. Children stand on edge of lake





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DETAILS
51³Ô¹ÏÍø #:
1439988870
License type:
Rights-ready
Collection:
Archive Films: 51³Ô¹ÏÍø
Max file size:
3840 x 2160 px - 3 GB
Clip length:
00:00:30:16
Upload date:
Location:
United States
Intended for:
Editorial use
Release info:
Not released
Mastered to:
QuickTime 10-bit ProRes 422 (HQ) 4K 3840x2160 24p
Categories:
- 1970-1979,
- 4K Resolution,
- Algae,
- Archival,
- Biology,
- Chicago - Illinois,
- Color Image,
- Colors,
- Danger,
- Education,
- Environment,
- Environmental Conservation,
- Film - Moving Image,
- HD Format,
- Horizontal,
- Lake,
- Lake Washington,
- Map,
- Nature,
- Nautical Vessel,
- No People,
- Old-fashioned,
- Outdoors,
- Plant,
- Pollution,
- Real Time Video,
- River,
- Science,
- Seattle,
- Social Issues,
- USA,
- Water,