Search our collection of background (non-event) articles from news media, science journals and other sources.
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Land | 9 | |
Ocean / Sea | 8 | |
Surface Waters / Wetlands | 6 | |
Fish | 5 | |
Land Mammals | 4 | |
Weather | 4 | |
Groundwater | 2 | |
Plants / Kelp | 2 | |
Birds | 1 |
3 | 22 | 1 |
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United States | 9 | |
Canada | 1 | |
China | 1 | |
Russia | 1 |