Search our collection of background (non-event) articles from news media, science journals and other sources.
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| SUMMER | 62 | |
| SPRING | 51 | |
| WINTER | 46 | |
| FALL | 35 |
| United States | 96 | |
| Canada | 16 | |
| Norway | 11 | |
| Russia | 5 | |
| Svalbard and Jan Mayen | 3 | |
| China | 2 | |
| Greenland | 2 | |
| Afghanistan | 1 | |
| Brazil | 1 | |
| Cambodia | 1 | |
| Denmark | 1 | |
| Estonia | 1 | |
| France | 1 | |
| French Polynesia | 1 | |
| Guatemala | 1 | |
| Mexico | 1 | |
| Romania | 1 | |
| Saint Vincent and the Grenadines | 1 | |
| Sweden | 1 | |
| Trinidad and Tobago | 1 | |
| Vietnam | 1 |
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