Most common refrigerants like R410A, R22, and R134A have a GWP of about 2,000. That means they are about 2,000 worse greenhouse gas than carbon dioxide. GWP of the most commonly used refrigerants in HVAC like R410A, R134A, and R32 is about 2,000. Methane GWP is within the 27 to 30 GWP range.

The most common refrigerant today, R-22, has a 100-year GWP of 1,810, almost 2,000 times the potency of carbon dioxide, so just one pound of R-22 is nearly as potent as a ton of carbon dioxide.

As an additional environmental concern, R-22 is a powerful greenhouse gas with a GWP equal to 1810 (which indicates 1810 times as powerful as carbon dioxide). Hydrofluorocarbons (HFCs) are often substituted for R-22 because of their lower ozone depletion potential, but these refrigerants often have a higher GWP.

Common refrigerants and their Ozone Depletion Potential (ODP) and Global Warming Potential (GWP) are indicated below. Global Warming Potential (GWP) is a measure of how much a given mass of a gas contributes to global warming.

L-41 offers a significant GWP reduction with respect to R-410A “Low Global Warming Replacements for HCFCs (over 75%) in Stationary Air Conditioning / Refrigeration Equipment.”

2) GWP - The GWP, or Global Warming Potential. A measurement (usually measured over a 100-year period) of how much effect a refrigerant will have on Global Warming in relation to Carbon Dioxide. CO 2 has a GWP of 1. The lower the value of GWP - …

The following table shows the data for R22 and alternative refrigerants. ODP: ozone depletion potential GWP: global warming potential according to EN 378:2017; AR4: Fourth Assessment Report of the IPCC, AR5: Fifth Assessment Report of the IPCC, AR6: Sixth Assessment Report of …

In general, all refrigerant types are characterised by two numbers: Ozone Depletion Potential (ODP) and Global Warming Potential (GWP).

Carbon dioxide has a GWP of 1, while R22 refrigerant has a GWP of 1810, meaning that one molecule of R22 has a global warming impact 1,810 times that of one molecule of carbon dioxide. The higher the GWP, the greater greenhouse gas impact associated with the refrigerant per ton.

It's important to know what the GWP is of commonly-used commercial refrigerants. Learn what the GWP of refrigerants like R134A and R22 with the provided chart.