6.4.13 (HL)—Air conditioning issues

Air conditioning can create two climate burdens: electricity demand and leakage of refrigerants. Reduce both by selecting lower-impact substitute refrigerants and lowering cooling demand before equipment runs.

Shade, insulation, ventilation, reflective surfaces, efficient systems, urban trees, green roofs and rewilded spaces can reduce heat gain; compare water, maintenance, albedo, access and local-climate trade-offs.

External shading lowers solar heat entry so the unit runs less; careful collection at appliance end-of-life also prevents CFC or HFC refrigerant leakage.

Evaluate refrigerant ozone and greenhouse effects, electricity source, building demand, leakage, maintenance and equitable access together.

Green roofs or trees are not free everywhere; check water, maintenance, heat and equity conditions.