Synthetic Greenhouse Gases

Synthetic Greenhouse Gases

Synthetic Greenhouse Gases How are they different to What are ‘synthetic greenhouse gases’? ‘greenhouse gases’? Synthetic greenhouse gases are man made Greenhouse gases are naturally occurring. chemicals. They are commonly used in They include carbon dioxide (CO2), methane refrigeration and air conditioning, fire (CH4) and nitrous oxide (N2O). Synthetic extinguishing, foam production and in greenhouse gases are man made chemicals medical aerosols. When they are released, and generally have a much higher global synthetic greenhouse gases trap heat in warming potential than naturally occurring the atmosphere. greenhouse gases. What is global warming potential? Global warming potential (GWP) is a measure of how much heat a greenhouse gas traps in the atmosphere over a specific time compared to a similar mass of carbon dioxide (CO2). CO2, with a global warming potential of 1, is used as the base figure for measuring global warming potential. The higher the global warming potential number, the more heat a gas traps. The most common synthetic greenhouse gas in Australia is HFC-134a, which is mostly used in refrigerators and air conditioners. It has a global warming potential of 1430; this means the release of one tonne of HFC-134a is equivalent to releasing 1430 tonnes of CO2 into the atmosphere. Which synthetic greenhouse gases does 22,800 Australia regulate? SF6 the global warming potential of sulfur hexafluoride (SF6) • hydrofluorocarbons (HFCs) • perfluorocarbons (PFCs) • sulfur hexafluoride (SF6) Synthetic • nitrogen trifluoride (NF3) greenhouse gases account for around 2% of all greenhouse gas emissions in Australia How do we use synthetic greenhouse gases? They are man made chemicals with a wide variety of uses. They are commonly used as refrigerants in refrigerators and air conditioning, as fire extinguishing agents, propellants in aerosols, insulating gas in the electricity supply industry, foam blowing agents, solvents and in magnesium production. They are also a by-product in some chemical manufacturing and aluminium production. environment.gov.au.

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