Researchers at the GFZ German Research Centre for Geosciences in Potsdam, Germany are reconstructing temperature data from trees in Turkey to better define and understand the climactic conditions. Researchers have confidently chronicled a block of time that reflects the medieval warm period including a little ice age between the 16th and 19th centuries up to the transition into the more modern warm phase in the mountains near Antalya, the coastal Mediterranean coastal region of Turkey. Researchers led by Ingo Heinrich from the GFZ have studied this time series using carbon isotope ratios reflected in the tree rings of the region.