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BBC Discover UHI!

June 20, 2018

By Paul Homewood


h/t Joe Public



BBC Weather discovers UHI effect!



  1. The Old Bloke permalink
    June 20, 2018 4:06 pm

    Difficult to know what to say really other than you don’t get much for £150 these days do you?

  2. Bitter@twisted permalink
    June 20, 2018 4:07 pm

    The BBC at its best.

  3. June 20, 2018 4:16 pm

    Reblogged this on Climate Collections.

  4. Phoenix44 permalink
    June 20, 2018 5:24 pm

    Is this an admission that the “record” at Heathrow (lots of concrete there) wasn’t anywhere near a record then?

    • June 20, 2018 6:40 pm

      No. The general public will still be told by the BBC about new records being set at Heathrow.

  5. Mike Jackson permalink
    June 20, 2018 5:42 pm

    Off topic but here is something else the BBC have discovered. Every word is true, folks!

    According to the TV news text service, Heineken is having a problem with beer supplies due to a shortage of …. wait for it … carbon dioxide!

    Once you’ve finished having a giggle at the irony of that, note that three times in the course of the report they refer to this essential ingredient as CO!

    There are some things that you really, really could not make up!

    • keith permalink
      June 20, 2018 8:10 pm

      And what was it Gillard and some US democrats said, CO2 is a pollutant. Wouldn’t like to drink that beer then if it’s polluted. (sarc)

      • Duker permalink
        June 21, 2018 12:59 am

        While the CO2 pollutant story is silly, other things essential for life can be pollutants in the wrong places and wrong quantities. Salt for instance

      • Ben Vorlich permalink
        June 22, 2018 6:49 am

        CO2 can suffocate as at Lake Nyos, and there are unfortunate accidents in areas where CO2 is used/produced too.

    • June 20, 2018 8:51 pm

      The UK poultry industry is about to go into crisis too it seems.

      …up to 60% of poultry processing plants could be knocked out “within days” as a result of the CO₂ shortage. CO₂ is used to stun and ultimately suffocate poultry in many slaughterhouses.

      • June 20, 2018 9:51 pm

        OB – I’m more worried about the beer situation 😂

      • Duker permalink
        June 21, 2018 1:14 am

        Silly me , I thought only plants needed CO2, it turns out its used everywhere in the food supply chain’ – Food and Drink Federation is concerned.
        hardly anyone gets to the bottom of the ‘problem’ but here it is
        ‘One of the largest sources of food-grade CO2 in Europe is ammonia plants, which often close for maintenance in the summer months – outside of the peak production time for fertiliser. This means supplies of CO2 are always tight at this time of year, particularly as demand for soft drinks and booze increases with the warmer weather.’

        But others are more sanguine saying its a storage and delivery problem
        ” “For them to say there is a global shortage of CO2 is complete tosh, they just haven’t sorted themselves out properly.”

        Apparently breweries are big users, with carbonation of beer only a small amount of that and there has been an ‘explosion’ ? in the numbers of (small) breweries

        All too funny !

      • bob permalink
        June 21, 2018 1:36 am

        An axe still works fine on my chickens. They’ll just have to use the analogue back-up.

      • dodgy geezer permalink
        June 21, 2018 4:28 am

        …hardly anyone gets to the bottom of the ‘problem’ but here it is
        ‘One of the largest sources of food-grade CO2 in Europe is ammonia plants, which often close for maintenance in the summer months – outside of the peak production time for fertiliser. This means supplies of CO2 are always tight at this time of year, …

        No sure that’s the ‘bottom of the problem’. I assume we still make ammonia using the Haber process that I recall from chemistry lessons? That was air (N2) mixed with H2 and passed over hot iron at high pressure. No CO2 in the process at all.

        I think we get the H2 from the ‘Water Gas’ process – H2O + C -> CO +H2. And then if you burn the CO you get CO2 as a by product. Which is probably the place where tthe shortage is?

        I don’t think anyone should rely on journalists any more. They have no education….

      • Duker permalink
        June 21, 2018 5:43 am

        DG. It says fertilizer production. Its well established the CO2 is a result of the production of ammonia from natural gas. It seems its called a ‘water wash process’ ( developed by Norsk Hydro) and the resulting CO2 is high purity, suitable for food grade. Halber may be the final step but you need feed stock first

      • Phoenix44 permalink
        June 21, 2018 9:33 am

        I always thought the CO2 in beer came from natural fermentation?

  6. Broadlands permalink
    June 20, 2018 7:15 pm

    The UHI has always been a big problem for historical climate studies. And as the number of people crowding into high density population locations grows it has increased. Climatologist Reid Bryson commented on it 40 years ago…

    Climatologist, Dr. REID BRYSON, 1976…

    “Now we’re not yet at the point where we can calculate exactly what collective effect all our sprawling cities have on the larger climate. But it is quite possible that the growing megalopolis-type urban areas here in North America and the new concentrations of people in Europe and elsewhere are already slightly modifying the atmospheric circulation patterns of the whole hemisphere. In fact, since we already know that these metropolitan areas do alter the micro-climates around them, it would be hard to believe that they have no effect at all on the macroclimate.”

    “…if we substantially increase our planet’s population-especially our urban population, because that’s where most of the new people will live — and if we all use some incredibly larger amount of energy per capita … well. It’s obvious that at some point the heat we release from our concentrated urban areas or other hot spots will probably have a significant effect in modifying the climate.”

    • Obie permalink
      June 20, 2018 8:51 pm

      The effect might be about as much as the rocks in a river bed have on the flow of water: might cause a little turbulence but not much else.

  7. June 20, 2018 9:58 pm

    Reblogged this on WeatherAction News and commented:
    As someone beside me just stood “That’s why you shouldn’t have your weather gauges in London” but clearly they know nothing as they aren’t intravenously linked to ambulance chasing and rent seeking.

    Hopefully some traction will be gained on looking at UHI for CET as TonyB has alluded to recently.

    • Duker permalink
      June 21, 2018 1:30 am

      Once coastlines had a chain of manned lighthouses who took daily temperature and weather readings. Now mostly automated and readings unwanted. But then daily weather prognostication became a staple of TV and even more temperature readings were needed in the heart of cities ( I kid you not- Wellington NZ had the meteorological service HQ on higher ground on a windy ridge above the city centre, but the City fathers implored them to have a daily temperature readings done among the city high rises as it was warmer and would make their fair city seem more salubrious ). Airlines are big buyers of weather reports so weather stations were often moved right in the heart of the airport terminals.
      The end result of all this ‘gerrymandering’ is temperature components for a natural climate record is now pretty hard to come by.

  8. June 20, 2018 10:30 pm

    The BBC discovered it years ago; in a series about a Victorian walled garden.They showed how to grow peaches in a walled garden. 3 thermometers were placed in the garden; one against a brick wall, one in the open, and one in the shade. Oddly enough the difference between the wall and the shade was 5 degrees and you put the peach tree against the red brick wall.

  9. Ian Johnson permalink
    June 21, 2018 8:55 am

    This may be relevant.

    Dear Ian

    Thanks for the email.

    I’ve spoken to some of the forecasters here and the reason is likely to be because of all the concrete – it is an example of an urban heat island. This is something that can happen with towns and cities which tend to be warmer than the surrounding countryside.

    You can find out more about that here –

    Best wishes

    BBC Weather

    —–Original Message—–
    From: Ian Johnson
    Sent: 20 October 2016 18:21
    To: Weather
    Subject: Contact Us feedback – Website

    Why is Heathrow airport so often the UK hotspot?

  10. Steve Borodin permalink
    June 21, 2018 9:47 am

    The BBC may discover truth and integrity eventually but don’t hold your breath.

  11. Gerry, England permalink
    June 21, 2018 12:53 pm

    Well, well, well, a difference of 5 degrees. Matching exactly what I see when driving out of the suburbs of an evening back into the country. I recall that one of the climate crooks Jones claimed that it was only 1 degree and was allowed for.

  12. Ben Vorlich permalink
    June 22, 2018 7:52 am

    To give the BBC their due the weather forecasts usually imply UHI when talking about rural areas and Scottish Glens and “several” or “3 or 4” degrees difference.

  13. M E permalink
    June 24, 2018 1:00 am

    Beer Brewing and carbon dioxide recycling.

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