SEALEVEL
| Date | Clue |
|---|---|
| 2021-01-04 | Rising concern? |
| 2018-11-25 | Something on the rise today |
| 2010-08-26 | It's affected by global warming |
| 2006-10-16 | Death Valley is below it |
| 2005-08-23 | Denver is way above it |
| 1999-06-11 | The Caspian is just below it |
| 1997-12-19 | 0, in some measures |