Many of us have seen graphs of the dramatic decline of Arctic sea ice over the last 30+ years (since we’ve been monitoring it via satellites), a decline which is unmatched for at least a century and almost certainly for several thousand years. The graph of sea ice extent anomaly (monthly average data from the National Snow and Ice Data Center) shows the change plainly:
 | kinimod on A High Schooler’s Take o… |
 | geoffbeacon on A High Schooler’s Take o… |
 | Bob Loblaw on Not Even Wrong? |
| Bob Loblaw on Not Even Wrong? |
 | Tom Passin on Not Even Wrong? |
 | convictstreak on A High Schooler’s Take o… |
| Bob Loblaw on Not Even Wrong? |
 | Cliff Mass on Not Even Wrong? |
 | jgnfld on Not Even Wrong? |
| Bob Loblaw on Not Even Wrong? |
| kinimod on A High Schooler’s Take o… |
| jgnfld on Not Even Wrong? |
| geoffbeacon on A High Schooler’s Take o… |
 | climatefreak on A High Schooler’s Take o… |
 | Lowlander on Not Even Wrong? |
Open Mind 