仲夏即将来临，酷热的气温和热浪也将来临。空调和冰箱可能会有所帮助，但它们让我们陷入了“制冷困境”，因为制冷设备使用的材料使我们的星球难以冷却。现在，一种新的制冷技术将普通材料转化为绿色安全的制冷剂，可能会扭转这一趋势。（Mid-summer is just around the corner, as well as scorching temperatures and heat waves. Air-conditioners and refrigerators can be helpful, but they trap us in a “cooling dilemma”, because the materials used by the cooling equipment make it difficult for our planet to cool down. Now a new refrigeration technology turning common material into