Fluorochemicals and refrigerants: Emissions
Why leaks matter far more than factories for refrigerants
What this tab covers The greenhouse-gas footprint per tonne, split by lifecycle phase (feedstock, production, movement, use, end of life), the global total, other environmental impacts, levers and low-carbon routes, India's position, and where the investment opportunity lies. Emission intensity 545 t CO2e per t range about 5-10 t if fully recovered and destroyed; over 3,000 t for R404A released · 0.8 x GWP 675 = 540 t from release, plus about 5 t for production (indicative) Global emissions per year 1,400 Mt CO2e per year 2019 · all fluorinated gases, of which HFCs are the largest part; HFC-23 alone was about 206 Mt in 2023 (14.0 Gg x 14,700)Per t of HFC-32 refrigerant over its life, cradle-to-grave, assuming about 80% is eventually released (indicative). Intensity: IPCC AR4 GWP; release fraction and production footprint indicative. Global total: IPCC AR6 WGIII (2022) via fluorspar tile; Adam et al. (2024) and EGU 2025 for HFC-23.
Share of footprint by lifecycle phase
Feedstock 0.5% Production / process 0.5% Use 59% End of life 40%Footprint by lifecycle phase
| Phase | Intensity | Share | Main sources of emissions | Notes | Source |
|---|---|---|---|---|---|
| Feedstock | about 2-3 t CO2e per t (indicative: HF at 0.75 t CO2e/t and chloromethanes) | 0.5% | fluorspar mining, HF kilns, chlor-alkali power | hydrofluoric acid tile; indicative | |
| Production / process | about 2-3 t CO2e per t (indicative), excluding fugitive releases | 0.5% | distillation energy and fugitive losses; for HCFC-22 plants, HFC-23 venting can add hundreds of t CO2e per t of R22 | HFC-23 emissions of 14.0 Gg in 2023 imply incomplete destruction at R22 plants | Adam et al. (2024); indicative |
| Movement | small | 0% | cylinder and ISO tank transport; illegal trade | indicative | |
| Use | about 325 t CO2e per t (indicative: about 48% of the charge leaks during service life) | 59% | leaks from split air conditioners, supermarket systems and car air conditioning; top-ups during servicing | efficiency of the equipment also sets electricity emissions, usually larger than the gas itself over a life | indicative |
| End of life | about 215 t CO2e per t (indicative: about 32% of the charge vented at disposal) | 40% | venting when equipment is scrapped without recovery | recovery and destruction or reclamation can cut this to near zero | indicative |
Other environmental impacts
HCFCs deplete ozone. HFOs and some HFCs break down to trifluoroacetic acid (TFA), a persistent PFAS found in rain and water. HF plants carry acute toxicity risk. Anhydrite and fluoride effluent from HF production.
Levers to cut emissions
- Destroy HFC-23 at all HCFC-22 plants (thermal oxidation)
- Recover and reclaim refrigerants at service and end of life
- Switch to lower-GWP gases (R32, HFOs) or natural refrigerants (propane, CO2, ammonia)
- Cut leaks through better installation and servicing
- Use more efficient equipment, which cuts power emissions
India
India's HFC use is set to grow with air conditioning until the 2028 freeze; the India Cooling Action Plan targets 25-30% lower refrigerant demand by 2037-38 through better servicing and design (indicative).
Emission figures are indicative global averages from the life-cycle studies named; actual footprints vary widely by site, energy mix and method.Low-carbon routes
| Route | Intensity | Cost premium | Status | Source |
|---|---|---|---|---|
| HFOs and HFO blends (R1234yf, R454B, R1234ze) | GWP under 1 to about 470 (indicative) | several times HFC price (indicative) | standard in new cars in the EU and US; SRF 20 kt/yr plant due 2028; Navin supplies Honeywell | SRF FY2026; ICICI Direct 2026; indicative |
| Natural refrigerants (propane R290, CO2, ammonia) | GWP about 0-3 | similar equipment cost at scale; safety design needed for propane | Godrej and Gree make R290 room air conditioners; CO2 dominant in new EU supermarkets (indicative) | indicative |
| Refrigerant reclamation | avoids new production and release | collection cost | EU and US markets growing; small in India (indicative) | indicative |