Let's Talk Global Warming

Episode 6: Fluorinated Gases

February 28, 2020 Season 1 Episode 6
Let's Talk Global Warming
Episode 6: Fluorinated Gases
Show Notes Transcript

Even though they are the most unknown Greenhouse Gases, Fluorinated Gases are the strongest greenhouse gases with warming capabilities thousands of times stronger than Carbon Dioxide. In this episode, I discuss what Fluorinated Gases are, where they come from, and how we can stop them from being emitted.

F-Gases:

https://www.epa.gov/ghgemissions/overview-greenhouse-gases

https://www.nrdc.org/stories/greenhouse-effect-101

https://ec.europa.eu/clima/policies/f-gas/legislation_en

HFCs:

https://www/ozone.unep.org/treaties/montreal-protocol

PFCs

https://www.metalsupermarkets.com/how-aluminum-is-made/

https://www.epa.gov/f-gas-partnership-programs/aluminum-industry

Sulfur Hexafluorides:

https://www.epa.gov/f-gas-partnership-programs/magnesium-industry

https://www.sciencedirect.com/topics/earth-and-planetary-sciences/sulfur-hexafluoride

Semiconductors:

http://matse1.matse.illinois.edu/sc/ware.html

https://www.epa.gov/f-gas-partnership-programs/semiconductor-industry 

Electrical Power Equipment:

https://www.epa.gov/f-gas-partnership-programs/electric-power-systems-partnership 

Music:
“News Theme” by Kevin MacLeod licensed under CC BY. Edited to be shorter but content was not changed. 

Link to Song Profile: https://incompetech.filmmusic.io/song/4122-news-theme/

Link to Author’s Profile: https://incompetech.filmmusic.io/artists/profile/9-kevin-macleod/

Link to license: https://creativecommons.org/licenses/by/4.0/legalcode

speaker 0:   0:00
Welcome to let's talk a little warming. My name is Stevie Justice. A reminder This is a purely informational channel on all of my fax. Come for verified and dependable sources, all of what you can check yourselves to the links and the description of this episode. In the last couple of episodes we talked about carbon dioxide, methane and nitrous oxide. As we've gone from one to the next, you may have noticed that the gas is progressively get worse as its lifetime and warming abilities increase. This pattern continues as we move on to the only completely man made greenhouse gas Floren aided gases. According to the NRDC Onley, 2% of the total man made greenhouse gas emissions are foreign aid gases. But they're so powerful that even that small amount of emissions is a big deal. Not only deformity gases trap more heat than other greenhouse gases, they also stay in the atmosphere for thousands of years, according to the E. P. A. This is why only one measly pound of the most powerful floor native gas is equivalent in power to 11 tons of carbon dioxide. So even though emissions aren't high any foreign, it'd gases are terrible for environment. There are four categories. Authority. Gases. Hydrofluorocarbons per floral carbons, sulphur hexafluoride and nitrogen tri fluoride. Each category has their own source of emissions and individual characteristics. One thing remains the same about all of them, though they are all killing our environment. According to the E. P, A 90% of Lorna gas emissions come from the substitution of ozone depleting substances and products such as refrigerants, aerosol propellants, phone blowing agents, solvents and fire retardants. This first source of emissions releases hydrofluorocarbons, which are also known as H F CES, according to the U. N Environment Program. In 1989 the Montreal Protocol was formed, which phased out many substances that depleted the ozone layer, such as chlorofluorocarbons. This global agreement was a milestone in the climate change movements history, but it's skimmed over one detail. The replacement for these ozone depleting substances was none other than hydrofluorocarbons, otherwise known as H F ces. Years later, in 2016 the Montreal Protocol was revised to include an amendment known as the Kai Galley Amendment, which called for the phasing out of H F sees. Since then, emissions have degrees due in large part to H F Si's replacement Hydra floral fins, also known as H F O's. According to the E. P. A. H F O's have having much shorter atmosphere lifetime and absorbed far less heat, making them much more environmentally friendly. Because H F seas are so commonly released, impose such a grave threat to our environment. It is safe to say that in order to reach the angle of defeating climate change, we have to completely phase out H f sees and replace them with safer alternatives such as H F O's. Even though all other mission sources are small compared to the first massive emission source, it doesn't change the fact that these next emissions are justus bad. Excluding one, all the other sources are industry related. Thes sources include aluminum manufacturing, magnesium manufacturing, tracer gases and semiconductor manufacturing. According to the E. P. A. Together thes sources make up 7% of the overall emissions off Lauren aided gases. The first industrial source releases a florin ated gas noticed per floor carbons, which are also called PF, sees. According to the E. P. A. This gas is released during aluminum manufacturing in a process called smelting, according to an article from metal markets. In order to get aluminum, alumina is added to the surface of multiple electrolyte electrical currents are passed through the mixture and deposit molten aluminum, which can then be poured into molds to be used. PF Cesaire produced During this process, when the content of alumina or in the lecture lie mixture falls below levels optimal for aluminum production, the more the content of alumina or falls below the optimal level, the more PFC czar produced, the most successful mitigation strategies have been relatively simple ones such as employee training and computer monitoring. Once again, small changes can have a massive impact. The second industrial source releases a florin ated gas called sulphur hexafluoride when it is used for magnesium processing and is a tracer gas for leak detection. When magnesium is produced, sulfur hexafluoride and or carbon dioxide act as a cover over molten magnesium. Without this cover, there's a risk of violent burning and of oxidation. When oxidation occurs, the quality of the final magnesium product is reduced. But studies have found that only a small percentage of the sulphur hexafluoride being used as cover is actually protecting the molten magnesium rather most of it is going straight into the atmosphere. The common solution for these emissions is to use alternate gas options and optimize what little sulfur hexafluoride is needed for the operation so that less of it is released into the atmosphere. Sulphur hexafluoride is also used as a tracer gas, which is a gas that detects leaks. According to Science Direct Sulphur hexafluoride is an extremely efficient tracer gas but is costly and terrible for the environment. This has led many companies to replace sulphur hexafluoride with cheaper and cleaner gases. The third industrial source is the manufacturing of semiconductors, which results in the emissions of Hydrofluoric carbons, nitrogen tri fluoride per floral carbons and sulphur hexafluoride sze, According to the Material Science and Technology Teaches workshop, semiconductors are used in almost all the trying devices, from musical greeting cards to computers. To put it simply, we can't just stop these emissions with these semiconductors are manufactured. Florida gases are used to create patterns on silicon wafers and clean chemical vapour. Deposition tool chambers, thes processes in themselves aren't the problem. Rather, the problem is that under normal operating conditions, between 10 to 80% of the Florida gases leak from the major factoring tools. UN reacted and are released into the atmosphere. To resolve this. Many companies have implemented technologies to stop these emissions. Such is by using less harmful chemicals, capturing and releasing the gases or utilizing any of the many other solutions for these emissions. Although these emissions are terrible, it is good to know that at the very least, riel action is being taken against them. According to the E. P. A. The final source of chlorinated gas emissions comes from a floor in a gas called sulphur hexafluoride, which is used to insolent gas in electrical transmission equipment. Such a circuit breakers, even though the submission source on Lee releases 3% of the total Florida gas emissions sulphur hexafluoride is not just the most potent tornado gas, but also the most potent greenhouse gas the IPCC has ever evaluated. Most of the emissions from this sector come from outdated equipment, which contains much more sulphur hexafluoride than newer equipment. Old circuit breakers, for example, can hold up to £2000 off sulphur hexafluoride, while new ones usually hold less than £100. Old circuit breakers are also much more prone to leakage as they age. In addition, improper maintenance techniques off the result in leakage of sulphur hexafluoride in order to prevent sulphur hexafluoride emissions, old equipment containing it needs to either be replaced or refurbished, and new maintenance techniques must be established. What's great about chlorinated gases is that people are actually doing something about it. In the European Union, for example, there are regulations in place which limit the amount of chlorinated gases that could be released. According to the European Commission. The regulations aim to come for need a gas emissions by 2/3 before the year 2030 on an international scale. There's a Montreal Protocol, which we talked about earlier, which, with the addition of the car galley amendment, targets H f ces. I'm not saying we solve the problem. If we saw the problem, I wouldn't be wasting my breath telling you about it. What I am saying is that action isn't impossible. Governments can listen, industries can change and people can learn. But if we keep treating global warming is a background problem. We may never see change. If I can leave you with one thing from this episode, it would be that we all have the power to make a change. Every big action comes from his 1000 smaller actions to get that big action. It will take each and every one of us together to defeat climate change together and on Lee together. Will we be able to end climate change if you have any questions, or if there's a climate change topic you'd like me to talk about? Don't forget to comment on the instagram post associated with this episode. And if you haven't already subscribe to this podcast and follow me on instagram at talking underscore about underscore Global underscore warming. Spread the word about this channel so that more people can be informed about global warming and we could take true steps to saving our world from climate change. Thanks for listening.