Which of the following is not an alternative that LEED recommends for reducing stratospheric ozone depletion?

Selecting refrigerants that have a long atmospheric lifetime is not aligned with LEED's recommendations for reducing stratospheric ozone depletion. In fact, LEED encourages the use of refrigerants that minimize their potential impact on the ozone layer, which typically includes selecting those with a lower global warming potential and shorter atmospheric lifetimes.

The rationale behind focusing on refrigerants with lower global warming potential is that these substances have a reduced effect on climate change and are less likely to contribute to ozone depletion. Furthermore, improving the efficiency of existing systems and implementing alternative cooling methods are both strategies that can lead to reduced energy consumption and thus a lower overall environmental impact. Therefore, while long atmospheric lifetime refrigerants might be effective for specific applications, they do not fit within LEED's framework for promoting sustainable practices aimed at protecting the ozone layer.