Learn how plants respond to higher atmospheric CO2 concentrations

How does rising atmospheric CO2 affect marine organisms?

Click to locate material archived on our website by topic


Chilean Continental Slope, Southern Chile
Reference
Lamy, F., Hebbeln, D., Röhl, U. and Wefer, G. 2001. Holocene rainfall variability in southern Chile: a marine record of latitudinal shifts of the Southern Westerlies. Earth and Planetary Science Letters 185: 369-382.

Description
The authors used the iron content from an ocean sediment core taken from the Chilean continental slope (41°S, 74.45°W) as a proxy for historic rainfall in this region during the Holocene. Results indicated several centennial and millennial-scale phases of rainfall throughout this period, including an era of decreased rainfall "coinciding with the Medieval Warm Period," which was followed by an era of increased rainfall during the Little Ice Age. Given these results, they concluded that their data "provide further indications that both the LIA and MWP were global climate events."