Reconstructed global temperature over the past 420,000 years based on the Vostok ice core from the Antarctica (Petit et al. 2001). The record spans over four glacial periods and five interglacials, including the present.
|
Years Before the Present |
Variations in oC |
|
0 |
+0.6 |
|
12,500 |
+2 |
|
25,000 |
-9.5 |
|
37,500 |
-7.5 |
|
50,000 |
-7.5 |
|
62,500 |
-7 |
|
75,000 |
-7.9 |
|
87,500 |
-4 |
|
100,000 |
-4.5 |
|
112,500 |
-7 |
|
125,000 |
+3.7 |
|
137,500 |
-8 |
|
150,000 |
-8.8 |
|
162,500 |
-8.8 |
|
175,000 |
-8 |
|
187,500 |
-7 |
|
200,000 |
-6 |
|
212,500 |
-3 |
|
225,000 |
-6 |
|
237,500 |
+2.1 |
|
250,000 |
-7 |
|
262,500 |
-8.2 |
|
275,000 |
-4 |
|
287,500 |
-7.5 |
|
300,000 |
-5 |
|
312,500 |
-1 |
|
325,000 |
+3.2 |
|
337,500 |
-8 |
|
350,000 |
-7.2 |
|
362,500 |
-6 |
|
375,000 |
-6 |
|
387,500 |
-5.5 |
|
400,000 |
-1.8 |
|
412,500 |
+2 |
|
425,000 |
+0.2 |
|
|
|
|
|
|
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