 | Home > Off Topic > Reduction of 165% ??? |
 
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| Bluest Member Since: 23 Apr 2016 Location: Lancashire Posts: 4216   
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I consider myself of average intelligence, and I did once get a grade C a-level in maths, but I can’t for the life of me get my head around this BBC News article.
Climate change: Jet fuel from waste 'dramatically lowers' emissions https://www.bbc.co.uk/news/science-environment-56408603 In the story the writer claims that carbon emissions from flying could be reduced by 165%. How can that be? If emissions were zero surely that would be reduction of only 100%. So how can we have 165% reduction  2007 110 TDCi Station Wagon XS |
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15th Mar 2021 8:39pm |
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| kmac Member Since: 07 Oct 2009 Location: Middlesex Posts: 1309 
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They actually say "The authors of the new study say the fuel cuts emissions by 165% compared to fossil energy."
Still gobblydygook as could mean anything or nothing |
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15th Mar 2021 8:44pm |
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| discomog Member Since: 09 May 2015 Location: Notts/Lincs Border Posts: 2529 
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Long, long time since I was at school but I've always believed that a reduction of 100% would be equal to zero as you say. Defender 90XS SW
Mini Countryman Cooper S Morgan Plus 8 |
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15th Mar 2021 8:48pm |
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| Caterham Member Since: 06 Nov 2008 Location: Birmingham Posts: 6300  
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one must assume little trees come out the back and absorb 65% worth of the original emissions
photo synthesis? or could it be due to the manufacturing being greener too the overall emissions are reduced by 165% of the planes emissions? ...I don't know. got any easy questions and I'll come back to this  |
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15th Mar 2021 8:52pm |
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| Leamreject Member Since: 19 Dec 2020 Location: Middle Earth - Leamington Spa Posts: 970  
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They are adding all the environment savings together, I.e. the saving between harvesting this methane fuel over another rather than letting it loose naturally into the environment. Also the benefits of any production process with transport including the variance of using this methane over kerosene in the aircraft.
All these little changes they have calculated collectively equate to more than 100% which is a maximum impossible for each element individually Not sure if that articulates what I understand it to be and mean? Ride like you stole it!! If I’m not on a bike it’s because only a 4x4 will do… 2011 2.4 Puma 90 HT |
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15th Mar 2021 8:57pm |
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| 90 Dreamer Member Since: 13 Jul 2019 Location: Oop North Posts: 2166 
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Thats exactly how I read it also, for example they save 100% on the actual engine emissions as well as not taking up landfill space with the waste used for the conversion process and hence there is no methane emissions produced from the landfill either.......
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15th Mar 2021 9:01pm |
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| Bluest Member Since: 23 Apr 2016 Location: Lancashire Posts: 4216
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But then surely that should be reduction measured against the landfill and aviation combined? You can’t attribute the reduction in one to something else can you? 2007 110 TDCi Station Wagon XS
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15th Mar 2021 9:03pm |
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| familymad Member Since: 13 Dec 2011 Location: Bucks Posts: 3481  
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So we can still fly to Spain ....
 1951 80" S1 2.0
1995 110 300TDI 1995 90 300TDI |
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16th Mar 2021 8:16am |
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| Bluest Member Since: 23 Apr 2016 Location: Lancashire Posts: 4216
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As long as you don’t exhale during the journey otherwise that will be a 412% increase in emissions on the 165% reduction on the 100% baseline. 2007 110 TDCi Station Wagon XS
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16th Mar 2021 8:52am |
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| Slideywindows Member Since: 09 Sep 2016 Location: North Essex Posts: 1283
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As a non-flier, I could suggest another way to reduce these emissions.....
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16th Mar 2021 9:55am |
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| Leamreject Member Since: 19 Dec 2020 Location: Middle Earth - Leamington Spa Posts: 970
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How about a cruise ship.... love to cruise
Not sure you’ll get much reduction but the food and drink will be good  Ride like you stole it!!
If I’m not on a bike it’s because only a 4x4 will do… 2011 2.4 Puma 90 HT |
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16th Mar 2021 10:22am |
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| Rashers Member Since: 21 Jun 2015 Location: Norfolk Posts: 3509 
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Yes, Slideywindows. You are spot on
It is the inconvenient truth that many of our those people who are bleating on about saving the planet from destruction still demand their foreign holiday to the Med or America or further in some cases every year. And many of the same are not happy with just the one but fly on holiday two and three times - after all if you are only paying £20 for a Ryanair flight, it can't produce as much pollution as a British Airways flight costing £400, can it ? 
It's a bit like Formula 1 talking about reducing emissions from the Cars. A gallant effort by the PR machine. Look at the carbon footprint of trucking / flying all the people, equipment and cars around the globe and then ask the question, are the cars the real pollution problem or are we just trying to fix something which isn't the problem? I fly and I watch Formula 1  |
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16th Mar 2021 10:36am |
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| Leamreject Member Since: 19 Dec 2020 Location: Middle Earth - Leamington Spa Posts: 970
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F1 and Moto GP..... roll on the end of March
Ride like you stole it!!
If I’m not on a bike it’s because only a 4x4 will do… 2011 2.4 Puma 90 HT |
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16th Mar 2021 11:12am |
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| L110CDL Member Since: 31 Oct 2015 Location: Devon Posts: 10782
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Moto GP and BTCC
1996 Golf Blue 300Tdi 110 Pick up.
Keeper. Clayton. |
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16th Mar 2021 10:31pm |
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