Debris / Trash | 7 | |
Unusual Animal Behavior | 1 | |
Death / Die-off / Decline | 1 | |
Erosion | 1 | |
Permafrost Change | 1 | |
Pollution | 1 | |
Sinkhole / Crater | 1 |
4 | 3 |
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1 | 2 | 3 | 1 |
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SPRING | 3 | |
SUMMER | 3 | |
WINTER | 1 |
United States | 5 | |
Iceland | 1 |