Emissions of HFCs are unrestricted, though CDM investments are used to reduce them in some cases.

清洁发展机制曾投资减少一定程度氢氟碳化物量，但其排放量仍不受限制。

What's more, most air conditioners and fridges use man-made gases such as hydrofluorocarbons or HFCs, as a cooling medium.

此外，大多数空调和冰箱人造气体，如氢氟烃 HFCs，作为冷却介质。

International agreements aim to reduce HFC use by 85% by 2050, but their implementation is still piecemeal and patchy.

国际协议目标是到2050年将HFC量减少85%，但其实施仍然零散且不均衡。

With innovative new methods being trialled from technology to make air conditioners more efficient to completely eradicating the need for HFCs at all.

通过从技术上试创新新方法，空调更高效，以完全消除对 HFC 需求。

And on October 15th, nearly 200 Parties of the Montreal Protocol agreed to an amendment that will reduce global HFC levels by 80 to 85 percent by the year 2047.

10月15日，《蒙特利尔议定书》近200个缔约国通过了一项修正案，该修正案将在2047年之前削减全球80%-85%氢氟碳化物排放。