Search our collection of background (non-event) articles from news media, science journals and other sources.
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| SPRING | 28 | |
| FALL | 26 | |
| WINTER | 26 | |
| SUMMER | 23 |
| United States | 74 | |
| Canada | 18 | |
| Norway | 9 | |
| Russia | 4 | |
| Iceland | 2 | |
| Japan | 2 | |
| Svalbard and Jan Mayen | 2 | |
| Sweden | 2 | |
| Afghanistan | 1 | |
| Greenland | 1 | |
| Mongolia | 1 | |
| Nigeria | 1 | |
| Solomon Islands | 1 |
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