Search our collection of background (non-event) articles from news media, science journals and other sources.
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| SPRING | 14 | |
| WINTER | 11 | |
| SUMMER | 9 | |
| FALL | 7 |
| United States | 37 | |
| Canada | 4 | |
| Norway | 2 | |
| Sweden | 1 |
Observations From Members