... heating and in increase of the average cooling degree-days, in reduction of the lower and in increase of higher temperature bins, all suggesting a climate change towards milder winters and ... temperatures. The increase of the yearly values of CDD was in the range of 25 to 53% in Athens, and in the range of 10 to 16% in Thessaloniki, depending on the base temperature, with the highest changes ... in the range of 9.5 to 22% in Athens, and in the range of 5 to 9% in Thessaloniki, depending on the base temperature, with the highest changes observed at the lowest base temperatures. The increase...