Search our collection of background (non-event) articles from news media, science journals and other sources.
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Land | 20 | |
Surface Waters / Wetlands | 4 | |
Ocean / Sea | 3 | |
Land Mammals | 2 | |
Fish | 1 | |
Groundwater | 1 | |
Plants / Kelp | 1 |
1 | 7 | 5 | 6 | 1 |
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SUMMER | 3 | |
SPRING | 1 |
United States | 6 | |
Canada | 3 |