|
blivet radio: Archaeology
blivet radio archaeology
 |
Saturday, April 20, 2002 |
New Report Explains Ice-Age Mystery."University of California researchers have solved a longstanding mystery for scientists trying to understand how Earth's climate can quickly shift between cold and warm modes.
The mystery revolves around the source of a rapid change in the geochemistry of oceanic carbon that occurred just as the last ice age ended, between 16,000 and 20,000 years ago.
Based on analyses of carbon stored in tiny fossil seashells, the UC geologists suggest that the chemical change occurred because of dramatic shifts in ocean circulation. They have developed a timeline of events that can be linked to previously described changes recorded in the ocean, in Antarctic ice cores and on the continents.
Climate-change experts say these changes reflect the types of events that could occur because of global warming related to human activities." [Science Daily]
12:18:22 AM 
|
|
|
| April 2002 |
| Sun |
Mon |
Tue |
Wed |
Thu |
Fri |
Sat |
| |
1 |
2 |
3 |
4 |
5 |
6 |
| 7 |
8 |
9 |
10 |
11 |
12 |
13 |
| 14 |
15 |
16 |
17 |
18 |
19 |
20 |
| 21 |
22 |
23 |
24 |
25 |
26 |
27 |
| 28 |
29 |
30 |
|
|
|
|
| Mar May |
|
|
