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Turbulence! Longer runways! More climate pandering from The Telegraph’s #FakeNews Dept.

by Paul Homewood
October 04, 2017, 3:02 PM
in News and Opinion
Reading Time: 5 mins read
A A
7

Even by the Telegraph’s recent standards, this new article really is dire:



More turbulence and longer runways – seven ways climate change will affect air travel
by Gavin Haines

It’s an inconvenient truth that jetting off to foreign shores for your holidays directly contributes to the very climate change that, according to some scientists, could have a considerable impact on aviation.

From longer flight times and more expensive plane tickets to an increase in turbulence, here are five ways a warming planet could impact air travel.

1. More turbulence

Bad news for nervous flyers. Passenger jets will be buffeted by up to three times more turbulence in future decades, according to a new report.

Scientists had already noticed that so-called clear-air turbulence (CAT) was on the rise, but the new study by the University of Reading is the first to come up with a comprehensive mathematical model predicting long-term global conditions. It estimates that by 2050 the rate of in-flight injuries will have almost tripled in line with the increased volume of turbulence.

“Air turbulence is increasing across the globe, in all seasons and at multiple cruising altitudes,” said Paul Williams, Professor of Atmospheric Science at Reading, who led the new study. “This problem is only going to worsen as the climate continues to change.”

The research team called for better forecasting systems so passengers can get seated and belted in time. They could soon have their wish. Boeing is preparing to test new laser technology that could allow pilots to detect clear-air turbulence up to 10 miles away.

That’s not far when you consider that the cruising speed of a passenger jet is about 550 mph; it basically gives the pilot 60 seconds to react. However, that’s just enough time to change course slightly or tell the cabin crew to batten down the hatches.

2. More delays and cancellations from higher temps

In June American Airlines was forced to cancel dozens of flights from Phoenix, Arizona, because it was too hot. With the mercury rising to 120F, the airline said some smaller jets were simply unable to leave the tarmac. Why? Well, hot air is thinner, which makes it harder for planes to generate enough lift to leave the ground.

“When you get in excess of 118F or higher, you’re not able to take off or land,” Ross Feinstein, a spokesman for American Airlines, told the New York Times. Researchers warn disruptions like these are likely to become more common as the planet warms.

3. Longer flights

Climate change is not just making turbulence more common; according to 2015 study, published in the journal Nature Climate Change, rising temperatures are also increasing flight times.

Scientists linked a small increase in return journey times of long-haul flights with an increase in the variation of the jet stream, the high altitude air that flows from west to east.

Just one minute’s extra flight time would mean jets spend approximately 300,000 hours longer per year burning roughly a billion additional gallons of jet fuel, they said, thus adding to the problem.

“Upper-level wind circulation patterns are the major factor in influencing flight times,” said Kris Karnauskas, associate scientist at Woods Hole Oceanographic Institution in Massachusetts. “Longer flight times mean increased fuel consumption by airliners. The consequent additional input of CO2 into the atmosphere can feedback and amplify emerging changes in atmospheric circulation.

“We already know that as you add CO2 to the atmosphere and the global mean temperature rises, the wind circulation changes as well – and in less obvious ways.

“The airline industry keeps a close eye on the day-to-day weather patterns, but they don’t seem to be concerned with cycles occurring over a year or longer.”

4. More expensive tickets

Damage and delays caused by turbulence are estimated to costs US airlines alone between $150m ($113m) to $500m (£377m) annually. Therefore, if cases of severe air turbulence increase – and if planes have to burn more fuel to counter fiercer winds – passengers could reasonably expect to pay more to fly.

5. More weight restrictions

Until new technology becomes available, there is little pilots can do to avoid lumps and bumps in the skies: clear air turbulence is not visible to the naked eye, isn’t detectable on radar and can’t be accurately forecasted. However, according to Steve Allright, a British Airways pilot, one thing they can do is cruise at higher altitudes, though there are restrictions preventing them from doing so.

“Our endeavours to fly at an altitude that has been reported as smooth may be prevented by several constraints such another aircraft occupying that level, or the weight of the aircraft at that time,” he said.

If planes need to fly higher to avoid turbulence then they would need to be lighter, which means the weight of the aircraft – and possibly passengers’ luggage, or even passengers themselves – could invite greater scrutiny.

6. Airport closures

The world’s major airports were not built with global warming in mind – they simply needed to be far from big towns and tall mountains, so coastal areas and river deltas were often chosen. These low-lying sites, however, are vulnerable to storm surges and rising sea levels.

Climate change scientists predict that sea levels could rise by as much as six feet this century. But if they rise by just a fraction of this, hundreds of aviation hubs around the world will be threatened. Some countries are taking steps to combat the risk. Norway, for example, has pledged to build all future runways at least 23 feet above sea level.

7. Longer runways

As outlined above, warmer temperatures mean planes have a tougher time taking off and during heatwaves airports with short runways are the first to face problems. Back in 2013, 15 passengers were removed from a Swiss flight to Geneva after the plane was deemed too heavy to take off from London City Airport, whose single 4,900-foot runway is one of the smallest in the country.

Unless airports like London City lengthen their runways, this sort of thing could become a far more regular occurrence in the future.

http://www.telegraph.co.uk/travel/news/ways-climate-change-could-affect-flying/

My Comments

The comments on the Telegraph page are universally and highly critical. And no wonder!

I have previously dealt with the junk science about turbulence and jet stream nonsense put forward by Prof Paul Williams. He claims that global warming is making the jet stream stronger.

Yet other junk scientists, such as Jennifer Francis, say the opposite, that Arctic warming is making it slow down.

“Dozens of flights cancelled due to hot weather”? Does not the idiotic reporter know that many thousands get cancelled due to ice and snow?

Sea levels? I am not aware of any major airports which are built only a foot or two above sea level. The natural variation of tides and storm surges dwarfs the few inches of sea level rise seen in the last century.

Longer runways? This one really does take the biscuit! He quotes the London City Airport as an example. Yet the link he provides, which is to an earlier Telegraph report, specifically states:

A spokesman for CityJet, which flies from the airport to destinations including Edinburgh, Paris, Milan, Florence, Amsterdam and Dublin, said the problem – which affects the airline’s 15 Fokker 50 aircraft, but not its 23 Avro RJ85s – occurs on a “weekly or monthly, but not daily” basis.

The main problem is that planes need to take more fuel when there is bad weather about. In the example quoted, there were thunderstorms around Geneva. Given the very short runway at London, the pilot had no choice but to lighten his load.

Read more at Not a lot of People Know That

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Comments 7

  1. Dan Pangburn says:
    8 years ago

    CO2 has no significant effect on climate but water vapor does and it has been increasing 1.5% per decade, 8% since the rate increased in about 1960. The huge expensive changes that some people want to make will have no significant effect on climate while the increased risk of precipitation related flooding due to WV increase is not being addressed. The warming from the added WV (WV is IR active) will mitigate the cooling that would otherwise be occurring.

    Reply
    • Sonnyhill says:
      8 years ago

      Burn one molecule of methane (nat.gas) you create two molecules of water (vapor).
      Now what do we do?

      Reply
  2. Spurwing Plover says:
    8 years ago

    The facts that the same liberal rag TIME was making front cover fake news back in the 1970’s of Global Cooling and a New Ice Age just like they lied about Global Warming in the 1990’s and so was the defunked liberal rag NEWSWEEK as well as Rolling Stone and Popular Science

    Reply
  3. John says:
    8 years ago

    The world has warmed 0,8 Kelvin since 1850. That’s a 0,27% increase…
    And it has been stable the last 20 years.
    This is just another climate bed time horror story from people who don’t no sh.t about aviation, flying and aircraft performance and handling.

    Reply
  4. Sonnyhill says:
    8 years ago

    I have noticed that Socialists have not asked people to rationalize consumption. Do you have to travel? Skinny passengers fly half price? Must you attend a megawatt mega decibel Roger Waters concert? Could you read a book instead of taking in the latest blockbuster? Cold calculations like these would turn off the shallow masses.

    Reply
  5. Spurwing Plover says:
    8 years ago

    How much CO2 dose John Travolta produce in his 707 and what about Al Bore and Leonardo DiCaprio as well as Donnell and those Greenpeace pests in their fossil fuel consumer ships(Arctic Sunrise,Rainbow Warrior II)while they sail all over the globe making total pests of themselves?

    Reply
    • old44 says:
      8 years ago

      Each year they have a Darwin to Adelaide race for electric cars to prove the technology works without fossil fuels.? And it works fine if you discount the 3 drivers required to avoid dying of dehydration and the 12 people support staff following them in 3 vehicles.

      Reply

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