Search our collection of background (non-event) articles from news media, science journals and other sources.
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257 23% | ||
171 15% | ||
167 15% | ||
156 14% | ||
148 13% | ||
128 11% | ||
123 11% | ||
101 9% | ||
99 9% | ||
94 8% | ||
55 5% | ||
48 4% | ||
48 4% | ||
25 2% | ||
15 1% | ||
15 1% | ||
14 1% | ||
7 <1% | ||
7 <1% | ||
6 <1% |
208 18% | ||
190 17% | ||
167 15% | ||
98 9% | ||
63 6% | ||
60 5% | ||
57 5% | ||
56 5% | ||
50 4% | ||
49 4% | ||
49 4% | ||
47 4% | ||
45 4% | ||
45 4% | ||
44 4% | ||
41 4% | ||
28 2% | ||
26 2% | ||
24 2% | ||
11 <1% | ||
10 <1% | ||
9 <1% | ||
8 <1% | ||
6 <1% | ||
6 <1% | ||
6 <1% | ||
5 <1% | ||
5 <1% | ||
4 <1% | ||
4 <1% | ||
3 <1% | ||
3 <1% |
178 16% | ||
166 15% | ||
124 11% | ||
119 10% | ||
92 8% | ||
88 8% | ||
77 7% | ||
75 7% | ||
60 5% | ||
57 5% | ||
44 4% | ||
36 3% | ||
33 3% | ||
29 3% | ||
28 2% | ||
28 2% | ||
23 2% | ||
19 2% | ||
15 1% | ||
13 1% | ||
12 1% | ||
9 <1% | ||
4 <1% | ||
2 <1% | ||
1 <1% |
2 | 1 | 1 | 1 | 2 | 1 | 2 | 2 | 4 | 4 | 7 | 2 | 11 | 17 | 48 | 167 | 346 | 127 | 172 | 38 |
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86 | 56 | 68 | 70 | 72 | 96 | 81 | 114 | 97 | 62 | 78 | 75 |
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SUMMER | 290 | |
FALL | 236 | |
WINTER | 217 | |
SPRING | 204 |
United States | 329 | |
Canada | 103 | |
Russia | 34 | |
Norway | 20 | |
Iceland | 17 | |
Finland | 8 | |
Greenland | 8 | |
Svalbard and Jan Mayen | 8 | |
Sweden | 6 | |
United Kingdom | 6 | |
Australia | 3 | |
Japan | 3 | |
Mexico | 3 | |
Mongolia | 3 | |
China | 2 | |
Czech Republic | 2 | |
Denmark | 2 | |
Greece | 2 | |
Nigeria | 2 | |
Ukraine | 2 | |
Afghanistan | 1 | |
Antarctica | 1 | |
Cape Verde | 1 | |
Cocos Islands | 1 | |
Ecuador | 1 | |
Estonia | 1 | |
France | 1 | |
Guatemala | 1 | |
Honduras | 1 | |
India | 1 | |
Nepal | 1 | |
Pakistan | 1 | |
Puerto Rico | 1 | |
Romania | 1 | |
Saint Vincent and the Grenadines | 1 | |
Solomon Islands | 1 | |
Spain | 1 | |
Switzerland | 1 | |
Vietnam | 1 |