ATMOpshere Europe returned to Brussels on 16 & 17 March 2015 for its 6th, and largest edition, attended by 230 participants. The event featured 60 international speakers. This comprehensive report encompasses all the very latest natural refrigerant trends in and around Europe. With new technologies to improve the efficiency of CO₂ in warm ambient climates, and increased investment in training, the market is already well prepared for the restricted use of HFCs foreseen by the new EU F-Gas Regulation.