Search our collection of background (non-event) articles from news media, science journals and other sources.
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| WINTER | 4 | |
| SUMMER | 3 | |
| SPRING | 2 | |
| FALL | 1 |
| United States | 5 | |
| Iceland | 2 | |
| Canada | 1 | |
| Greenland | 1 | |
| Saint Vincent and the Grenadines | 1 |
Observations From Members