The Kilimanjaro glaciers, there are more than one! are shrinking due to reduced precipitation not increased temperatures. This has been shown by all research going back decades! The summit temperatures of Kilimanjaro have remained well below zero ever since research started there in the 1920's. The reduced precipitation is down to deforestation on the lower slopes and the following reduction of evapotranspiration. CO2 has never driven climate in the geological past and the formation of this carbonate mineral may well indicate high atmospheric CO2 levels but this does not prove climate driving. Global temperatures were higher during the Cretaceous, so too were CO2 levels, 3500 ppmv is the current estimate, but climate then was tuned by different continental distribution and a more energetic tectonic system that caused higher sea levels. There was still polar ice at that time as geological evidence has shown. I think that Tim Lowenstein may be barking up the wrong tree.
AOL Health