Search our collection of background (non-event) articles from news media, science journals and other sources.
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| 253 100% | ||
| 81 32% | ||
| 74 29% | ||
| 57 23% | ||
| 40 16% | ||
| 34 13% | ||
| 33 13% | ||
| 31 12% | ||
| 29 11% | ||
| 29 11% | ||
| 16 6% | ||
| 15 6% | ||
| 9 4% | ||
| 8 3% | ||
| 6 2% | ||
| 6 2% | ||
| 5 2% | ||
| 3 1% | ||
| 3 1% | ||
| 1 <1% |
| 76 30% | ||
| 62 25% | ||
| 48 19% | ||
| 33 13% | ||
| 27 11% | ||
| 25 10% | ||
| 23 9% | ||
| 16 6% | ||
| 15 6% | ||
| 14 6% | ||
| 14 6% | ||
| 9 4% | ||
| 8 3% | ||
| 8 3% | ||
| 7 3% | ||
| 5 2% | ||
| 4 2% | ||
| 4 2% | ||
| 4 2% | ||
| 3 1% | ||
| 3 1% | ||
| 3 1% | ||
| 3 1% | ||
| 3 1% | ||
| 2 <1% | ||
| 2 <1% | ||
| 1 <1% | ||
| 1 <1% | ||
| 1 <1% |
| 46 18% | ||
| 41 16% | ||
| 37 15% | ||
| 35 14% | ||
| 32 13% | ||
| 29 11% | ||
| 22 9% | ||
| 20 8% | ||
| 16 6% | ||
| 10 4% | ||
| 7 3% | ||
| 6 2% | ||
| 5 2% | ||
| 5 2% | ||
| 4 2% | ||
| 4 2% | ||
| 3 1% | ||
| 2 <1% | ||
| 2 <1% | ||
| 2 <1% | ||
| 1 <1% | ||
| 1 <1% |
| 1 | 1 | 1 | 1 | 1 | 1 | 4 | 4 | 6 | 13 | 45 | 78 | 25 | 39 | 6 |
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| FALL | 63 | |
| SUMMER | 61 | |
| WINTER | 56 | |
| SPRING | 46 |
| United States | 53 | |
| Canada | 13 | |
| Norway | 6 | |
| Greenland | 4 | |
| Russia | 4 | |
| Mexico | 3 | |
| Japan | 2 | |
| Nigeria | 2 | |
| Svalbard and Jan Mayen | 2 | |
| Australia | 1 | |
| Cocos Islands | 1 | |
| Ecuador | 1 | |
| Greece | 1 | |
| Iceland | 1 | |
| India | 1 | |
| Solomon Islands | 1 | |
| Vietnam | 1 |
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