Search our collection of background (non-event) articles from news media, science journals and other sources.
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| SUMMER | 8 | |
| FALL | 7 | |
| WINTER | 7 | |
| SPRING | 4 |
| United States | 15 | |
| Canada | 7 | |
| Iceland | 5 | |
| Greenland | 1 | |
| Honduras | 1 | |
| Norway | 1 | |
| Saint Vincent and the Grenadines | 1 |
Observations From Members