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2. 2,3,3,3-Tetrafluoropropene - Wikipedia

   en.wikipedia.org/wiki/2,3,3,3-Tetrafluoropropene

   HFO-1234yf was developed by a team at DuPont, led by Barbara Haviland Minor, jointly with researchers at Honeywell. [8] [9] Their goal was to meet European directive 2006/40/EC, which went into effect in 2011 and required that all new car platforms for sale in Europe use a refrigerant in its AC system with a global warming potential (GWP) less than 150 times more potent than carbon dioxide.

3. Automotive air conditioning - Wikipedia

   en.wikipedia.org/wiki/Automotive_air_conditioning

   The refrigerant was developed by the DuPont/Honeywell company and is more expensive per pound than R-134a. R-1234yf can be found in late-model cars and is not cross-compatible with older R-134a or R-12 systems. Of the three refrigerants, R-1234yf is the best for the environment with the lowest global warming potential number which is about a three.

4. Refrigerant - Wikipedia

   en.wikipedia.org/wiki/Refrigerant

   A DuPont R-134a refrigerant. A refrigerant is a working fluid used in cooling, heating or reverse cooling and heating of air conditioning systems and heat pumps where they undergo a repeated phase transition from a liquid to a gas and back again.

5. AOL.com - News, Sports, Weather, Entertainment, Local & Lifestyle

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   AOL latest headlines, entertainment, sports, articles for business, health and world news.

6. AOL Mail

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   Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

7. Is the stock market open or closed on Black Friday? See hours ...

   www.aol.com/stock-market-open-closed-black...

   United States stock market 2024 holiday schedule U.S. stock markets will be closed on the following days in 2024: Thanksgiving: Thursday, Nov. 28 (markets also close at 1 p.m. ET on Nov. 29)

8. Losing Weight After 50 Is Possible: 21 Effective Tips From ...

   www.aol.com/losing-weight-50-possible-21...

   Find out how age and weight go together, here. Plus, expert tips for losing weight after 50, including diet plans, calorie needs, and low-impact workouts.

9. Bitter cold winter temperatures are on their way out, but ...

   www.aol.com/bitter-cold-winter-temperatures-way...

   Overall, the weather service said that as much as 2 additional feet of new snow is possible near the eastern shore of Lake Ontario through Saturday. Lighter snowfall amounts are expected elsewhere ...