Isobutane is an effective and environmentally sound refrigerant for domestic refrigerators because it has a global warming potential of only 3.3, negligible environmental effects beyond flammability, and is present in very small quantities (55 grams in a large refrigerator), making modern domestic refrigeration much less environmentally problematic than historical refrigerants like CFCs.
factualpending
Evidence Quote
“isobutane... has a global warming potential of only 3.3 and its other environmental effects are negligible. Plus, there's hardly any of it in a fridge. Even my big one at home has a refrigerant charge of just 55 grams.”
Created: 8/13/2026, 9:53:39 AM
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