Search our collection of background (non-event) articles from news media, science journals and other sources.
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| WINTER | 6 | |
| SUMMER | 4 | |
| FALL | 3 | |
| SPRING | 3 |
| United States | 18 | |
| Canada | 3 | |
| China | 1 | |
| Norway | 1 | |
| Pakistan | 1 |
Observations From Members