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  2. Automotive air conditioning - Wikipedia

    en.wikipedia.org/wiki/Automotive_air_conditioning

    Sustainable automotive air conditioning is the subject of a debate – also known as the Cool War – about the next-generation refrigerant in car air conditioning. An advocacy group, The Alliance for CO 2 Solutions , supports the uptake of carbon dioxide (CO 2 ) as a refrigerant in passenger cars, and the chemical industry is developing new ...

  3. Freon - Wikipedia

    en.wikipedia.org/wiki/Freon

    A can of 1,1,1,2-Tetrafluoroethane (Freon 134a) used for recharging vehicle air conditioning. ... 1,1,1,2-Tetrafluoroethane (R-134a or HFC-134a), ...

  4. Refrigerant - Wikipedia

    en.wikipedia.org/wiki/Refrigerant

    From early 2020 HFCs (including R-404A, R-134a and R-410A) are being superseded: Residential air-conditioning systems and heat pumps are increasingly using R-32. This still has a GWP of more than 600. Progressive devices use refrigerants with almost no climate impact, namely R-290 (propane), R-600a (isobutane) or R-1234yf (less flammable, in cars).

  5. 1,1,1,2-Tetrafluoroethane - Wikipedia

    en.wikipedia.org/wiki/1,1,1,2-Tetrafluoroethane

    HFC-134a atmospheric concentration since year 1995. R-134a began being phased out from use in the European Union, starting in the mid 2010s, by a directive of 2006, recommending the replacement of gases in air conditioning systems with a GWP above 100. [13] 1,1,1,2-tetrafluoroethane is subject to use restrictions in the US and other countries ...

  6. Hydrofluorocarbon - Wikipedia

    en.wikipedia.org/wiki/Hydrofluorocarbon

    They are frequently used in air conditioning and as refrigerants; R-134a (1,1,1,2-tetrafluoroethane) is one of the most commonly used HFC refrigerants. In order to aid the recovery of the stratospheric ozone layer, HFCs were adopted to replace the more potent chlorofluorocarbons (CFCs), which were phased out from use by the Montreal Protocol ...

  7. How to stay fit during the holidays: Science-backed tips

    www.aol.com/stay-fit-during-holidays-science...

    And if grazing, reach for healthy snacks, like fruit, nuts, or air-popped popcorn. 4. Fit Different Workouts Into Your Day. Speaking of snacks—try exercise "snacks," or short bursts of exercise.

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