Athenians accustomed to sweltering in stuffy metro trains over the summer can look forward to some relief after the firm managing the capital’s most popular mode of transport said it would equip its new trains with air conditioning. Fourteen of the metro system’s 21 state-of-the-art Korean-made trains – acquired ahead of the Athens Olympics – are to be installed with air-conditioning units by spring 2007, Attiko Metro said. Seven of the new trains have had air conditioning since the summer of 2004. A budget of 5.5 million euros has been earmarked for the project, which foresees the installation of 12 air-conditioning units in each of the 14 new metro trains. The original fleet of German-made trains acquired by Attiko Metro were not built to accommodate air-conditioning units so are expected to remain as they are.