| Clue | Source | Date |
|---|---|---|
| Shrinking Arctic formation | USA Today | 06 Nov 2020 |
| Frozen planetary region | USA Today | 21 Jun 2020 |
| Frigid climate feature | Universal | 18 Aug 2015 |
| Frigid climate feature | ||
| Diminishing environmental concern | ||
| Arctic mass | ||
| Arctic formation | ||
| Shrinking Arctic mass | ||
| Arctic feature |