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Bluest



Member Since: 23 Apr 2016
Location: Lancashire
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Reduction of 165% ???
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 Question Question Question 2007 110 TDCi Station Wagon XS
Post #891661 15th Mar 2021 8:39pm
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Leamreject



Member Since: 19 Dec 2020
Location: Middle Earth - Leamington Spa
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Italy 2011 Defender 90 Puma 2.4 HT Fuji White
Perhaps they will be flying backwards.... Rolling with laughter Rolling with laughter Rolling with laughter Ride like you stole it!!
If I’m not on a bike it’s because only a 4x4 will do…
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Post #891662 15th Mar 2021 8:44pm
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kmac



Member Since: 07 Oct 2009
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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
Post #891663 15th Mar 2021 8:44pm
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discomog



Member Since: 09 May 2015
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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
Post #891665 15th Mar 2021 8:48pm
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Caterham



Member Since: 06 Nov 2008
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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 Mr. Green
Post #891671 15th Mar 2021 8:52pm
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Leamreject



Member Since: 19 Dec 2020
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Italy 2011 Defender 90 Puma 2.4 HT Fuji White
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
Post #891677 15th Mar 2021 8:57pm
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90 Dreamer



Member Since: 13 Jul 2019
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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.......
Post #891679 15th Mar 2021 9:01pm
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Bluest



Member Since: 23 Apr 2016
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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
Post #891680 15th Mar 2021 9:03pm
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familymad



Member Since: 13 Dec 2011
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 2016 Defender 130 Puma 2.2 HCPU Santorini Black
So we can still fly to Spain .... Whistle 1951 80" S1 2.0
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1995 90 300TDI
Post #891739 16th Mar 2021 8:16am
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Bluest



Member Since: 23 Apr 2016
Location: Lancashire
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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
Post #891752 16th Mar 2021 8:52am
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Slideywindows



Member Since: 09 Sep 2016
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As a non-flier, I could suggest another way to reduce these emissions.....
Post #891783 16th Mar 2021 9:55am
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Leamreject



Member Since: 19 Dec 2020
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How about a cruise ship.... love to cruise Whistle


Not sure you’ll get much reduction but the food and drink will be good Thumbs Up 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
Post #891793 16th Mar 2021 10:22am
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Rashers



Member Since: 21 Jun 2015
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Slideywindows wrote:
As a non-flier, I could suggest another way to reduce these emissions.....


Yes, Slideywindows. You are spot on Thumbs Up

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 ? Laughing
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 Very Happy
Post #891797 16th Mar 2021 10:36am
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Leamreject



Member Since: 19 Dec 2020
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Italy 2011 Defender 90 Puma 2.4 HT Fuji White
F1 and Moto GP..... roll on the end of March Thumbs Up 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
Post #891804 16th Mar 2021 11:12am
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L110CDL



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Moto GP and BTCC Thumbs Up 1996 Golf Blue 300Tdi 110 Pick up.

Keeper.

Clayton.
Post #891998 16th Mar 2021 10:31pm
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