Search our collection of background (non-event) articles from news media, science journals and other sources.
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| SPRING | 39 | |
| SUMMER | 25 | |
| WINTER | 23 | |
| FALL | 12 |
| United States | 74 | |
| Canada | 11 | |
| Norway | 5 | |
| Russia | 4 | |
| Svalbard and Jan Mayen | 4 | |
| Iceland | 2 | |
| Sweden | 2 | |
| China | 1 | |
| Finland | 1 | |
| Saint Vincent and the Grenadines | 1 | |
| Switzerland | 1 | |
| United Kingdom | 1 |
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