Archives par mot-clé : Extreme events

climate-debate

ANTARCTIC FRONT TO DELIVER “ONE-IN-15-YEAR WEATHER EVENT” TO NEW SOUTH WALES

by Cap Allon, August 20, 2020 in Electroverse

People do the best they can with the information they have, but it appears to me, and Charles Bukowski, that the problem with the world is that the intelligent people are full of doubt, while the stupid people are full of confidence.

HEAVY SNOW is set to bury large swathes of NSW and the ACT over the next few days in what the Bureau of Meteorology is calling a “one-in-15-year weather event”, and what Electroverse posits is an addition to the ever-mounting pile of evidence which suggests anthropogenic global warming is a politicized, data-spun lie.

A large mass of Antarctic air is on course to blast the eastern half of Australia with blizzards, wild winds, and record-breaking low temperatures as it breaks-away from the ice continent and rides anomalously-far north on the back of a weak & wavy (meridional) jet stream (a phenomenon associated with the historically low solar activity we’re currently receiving).

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climate-debate

A method has been developed to study extreme space weather events

by SKOLKOVO INSTITUTE OF SCIENCE AND TECHNOLOGY (SKOLTECH), August 15, 2020 in WUWT/Rotter

Scientists at Skolkovo Institute of Science and Technology (Skoltech), together with colleagues from the Karl-Franzens University of Graz & the Kanzelhöhe Observatory (Austria), Jet Propulsion Laboratory of California Institute of Technology (USA), Helioresearch (USA) and Space Research Institute of the Russian Academy of Sciences (Russia) developed a method to study fast Coronal Mass Ejections, powerful ejections of magnetized matter from the outer atmosphere of the Sun. The results can help to better understand and predict the most extreme space weather events and their potential to cause strong geomagnetic storms that directly affect the operation of engineering systems in space and on Earth. The results of the study are published in the Astrophysical Journal.

Coronal Mass Ejections are among the most energetic eruptive phenomena in our solar system and the main source of major space weather events. Huge clouds of plasma and magnetic flux are ejected from the atmosphere of the Sun into the surrounding space with speeds ranging from 100 to 3500 km/s. These gigantic solar plasma clouds and the accompanying powerful shock waves can reach our planet in less than a day, causing severe geomagnetic storms posing hazards to astronauts and technology in space and on Earth.

One of the strongest Space Weather events occurred in 1859 when the induced geomagnetic storm collapsed the whole telegraph system in North America and Europe, the main means of communication for business and personal contacts in those days.

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climate-debate

First Time In 70 Years No Pacific Typhoon Forms In July… Alarmists Alarmed Typhoon Trend Falling!

by P. Gosselin, Ausgust 1, 2020 in NoTricksZone

This year is the first time since 1951 the Pacific sees no typhoons in the month of July. Typhoons have seen downward trend since 1951. 

Global warming alarmists like to claim that tropical storms will intensify and become more frequent unless people stop using fossil fuels.

And recently these alarmists have had our attention steered to the Atlantic basin, where tropical storms this year have seen quite an active season thus far.

Another reason the focus has been on the Atlantic is because very little has been happening in terms of Pacific typhoons, and the alarmists don’t want to talk about that.

In fact this July is the first July to have seen no typhoons formed in the Pacific at all since statistics on this began in 1951, according to the data from the Japan Meteorological Agency (JMA).

Data source: JMA, here and here. 

Normally between 3 to 4 typhoons form in the Pacific in July. Up to 8 have formed in the past, e.g. on 2017 and 1971. But this year July failed to see a single typhoon form – the first time this has occurred since 1951.

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better to know...?, climate-debate

UK State Of The Climate Report 2019

by P. Homewood, April 16, 2020 In NotaLotofPeopleKnowThat

London, 16 April: The floods that affected northern England in the autumn of 2019 were nothing out of the ordinary. That’s according to a new review of the UK’s 2019 weather.

Author Paul Homewood says that although rainfall in the region was high, it has been exceeded several times in the past, right back to the 19th century.

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Key findings

* After a rising trend between the 1980s and early 2000s, temperature trends have stabilised in the UK.

* Heatwaves are not becoming more intense, but extremely cold weather has become much less common.

* There is little in the way of long-term trends in rainfall in England and Wales.

* Sea-level rise around British coasts is not accelerating.

The UK’s Weather in 2019: More of the same, again (PDF)

better to know...?, climate-debate

Britain’s Floods Have Nothing To Do With Climate Chang

by J. Delingpole, February 19, 2020 in ClimateChangeDispatch

Boris Johnson’s Greenest Government Evah has come up with a brilliant new excuse to duck its responsibilities for all the floods now swamping parts of Britain: climate change ate our homework.

From Hereford to Shrewsbury and South Wales to North Yorkshire, swathes of Britain are underwater thanks to flooding in the aftermath of Storm Dennis, which so far has claimed five lives.

There are currently more than 400 flood warnings around Britain, with more heavy rain forecast to come.

But the government has effectively absolved itself of responsibility by pinning the blame on ‘climate change.’

Environment Secretary George ‘Useless’ Eustice has said in an interview with LBC radio that the scale of the flooding is due to the ‘nature of climate change.’

Sir James Bevan, the chief executive of the Environment Agency, has gone a step further by blaming ‘the climate emergency.’

None of this is true. There is no evidence whatsoever to suggest that these floods are anything other than an entirely normal, cyclical event which has been repeated many times over many centuries — with or without the contribution of anthropogenic CO2.

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Also : TWO NAMED STORMS HIT THE UK WITHIN TWO SUCCESSIVE WEEKENDS — “CLIMATE CHANGE TO BLAME!” BARK THE ILL-INFORMED

better to know...?, climate-debate

Despite 1990s Warming, Japan Climate Has Become More Agreeable, Less Extreme Over Past 100 Years!

by Kirye, January 9, 2020 in NoTricksZone

Though the media like to tell their audience that man-made climate change is leading to more extreme weather, the data don’t support it. In fact, one could easily argue that Japan’s climate is more agreeable today.

No trend in long-term annual precipitation

Over the past 100 years, for example, annual precipitation has not trended in an particular direction over the long term, showing rather some cyclical attributes:

 

Data source: Japan Meteorological Agency (JMA). 

If anything, precipitation has been rather steady for the better part of the past 2 decades, and even resembles what was observed about 60 years ago, in the 1950s.

Note how the extremes in precipitation occurred in the 1970s and 1980s when most of the climate talk was about global cooling. But overall, there’s been no trend change in precipitation in Japan.

Typhoons trending downward modestly!

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climate-debate

Climate Change, Lies And The Lancet

by P. Homewood, January 7, 2020 in ClimateChangeDispatch

The Lancet has published its latest annual report on health and climate change, which inevitably orders us to stop using fossil fuels or the kids will get it!

It is the usual load of overhyped rubbish of the sort we have seen in previous years.

The executive summary contains a number of questionable claims and statements which seriously undermine the report’s integrity and reliability.

For a start, it claims that ‘a child born today will experience a world that is more than four degrees warmer than the pre-industrial average.’

Really? A temperature rise of three degrees in 50 years or so? Even the highly discredited climate models don’t regard this as realistic. For the Lancet to state this as a bald-faced fact calls into question the objectivity of its contents.

It then proceeds to list all sorts of ways in which health is already being impacted by climate change, including disease transmission, air pollution, extreme weather (which apparently will affect women more – yes, that’s got me and all!), wildfires, heatwaves and goodness knows what else.

Yet, tucked away in Figure 5 is the dirty little secret that mortality rates from climate-related causes have been plummeting since 1990.

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climate-debate

Another year, and still no increase in severe U.S. tornadoes

by P. Homewood, December 27, 2019 in WUWT

Climate scientists love to blame every bad weather event on global warming. Yet we never hear them cite climate change for the relative absence of bad weather!

One such example are tornadoes in the US, where we now have several decades of carefully collated data.

With the year near an end, we know that the number of tornadoes has been above average this year, though well below 2008 and 2011. Primarily this is due to several outbreaks in February and April:

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https://www.spc.noaa.gov/wcm/#data

climate-debate, to keep an eye on...

A Critique of the Fourth National Climate Assessment

by Robert W. Endlich, December 18, 2018 in CAtmSciForum

In describing the errors in the Fourth National Climate Assessment, ‘NCA4’, I’ll use the words from the Executive Summary which purport to link climate changes in the USA to global climate change.

The first claim, “The last few years have also seen record-breaking, climate-related weather extremes,“ is shown to be false, simply by examining climate records, some from the National Climate Data Center.

Tornadoes have been decreasing over the past six decades as temperatures moderate from the significant cooling of the 1940s to 1970s.  As a basic knowledge of meteorology teaches, it is the pole to equator temperature difference that drives the intensity of cold season storms and especially the spring-season storms which bring the extremely strong tornado outbreaks.

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Figure 1.  Annual count of strong to violent tornadoes from 1954-2014, showing a significant decrease of tornado activity the past 60 years, based on data from NOAAs Storm Prediction Center. [Note: This graphic replaces the original graphic that showed all tornadoes EF1 and stronger. Correction made 1/25/2019].

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better to know...?, climate-debate

Extremes

by Judith Curry, June14, 2019 in WUWT

Politics versus science in attributing extreme weather events to manmade global warming.

If you follow me on twitter, you may have noticed that I was scheduled to testify before the House Oversight and Reform Committee on Jun 12 [link].  The subject of the Hearing is Contending with Natural Disasters in the Wake of Climate Change.

Late on Jun 10, I received an email telling me that the Hearing is postponed (as yet unscheduled).  Apparently the Committee finds it more urgent to have a Hearing related to holding the Attorney General and Secretary of Commerce in contempt of Congress [link].  Interesting to ponder that Congressional procedural issues are deemed to be more important than Climate Change.

So I spent all last week working on my testimony (which is why there have been no new blog posts).  I hope the Hearing will eventually happen (Michael Mann is also scheduled to testify).

Hurricanes and climate change constitute a major portion of my testimony.  You may recall my recent series  on Hurricanes & climate change [link].  Specifically with regards to detection and attribution, my bottom line conclusion was:

“In summary, the trend signal in hurricane activity has not yet had time to rise above the background variability of natural processes. Manmade climate change may have caused changes in hurricane activity that are not yet detectable due to the small magnitude of these changes compared to estimated natural variability, or due to observational limitations. But at this point, there is no convincing evidence that manmade global warming has caused a change in hurricane activity.”

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climate-debate

Roy Spencer: Why so many tornadoes this year? It’s not what AOC, Bernie Sanders (or maybe even you) think

by Charles the moderator, May 29, 2019 in WUWT

By Roy Spencer | Fox News

Progressive politicians like Al Gore, Sen. Bernie Sanders, I-Vt., and Rep. Alexandria Ocasio-Cortez, D.N.Y., don’t hesitate to blame any kind of severe weather – even if it is decreasing over time – on global warming.

With the devastating Dayton, Ohio tornadoes fresh on our minds, it is useful to examine exactly why (modest) global warming has produced fewer – not more – of such events.

The simple answer is that tornado formation requires unusually cool air.

Very few thunderstorms produce tornadoes. In the hot and humid tropics, they are virtually unheard of. The reason why is that (unlike hurricanes) tornadoes require strong wind shear, which means wind speed increasing and changing direction with height in the lower atmosphere.

These conditions exist only when a cool air mass collides with a warm air mass. And the perfect conditions for this have existed this year as winter has refused to lose its grip on the western United States. So far for the month of May 2019, the average temperature across the U.S. is close to 2 degrees Fahrenheit below normal.

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climate-debate

Scientists Find No Human Impact On Extreme Rainfall Events In Southeastern Australia…Rather ENSO Related

by P. Gosselin, May 21, 2019 in NoTricksZone

A new study appearing in the Journal of Weather and Climate Extremes titled “Historical extreme rainfall events in southeastern Australia” – led by LindenAshcroft, School of Earth Sciences, University of Melbourne – shows that even more extreme weather in terms of rainfall existed before 1900 in Melbourne, Sydney and Adelaide.

No real trend when examining Sydney, Australia data going back 178 years. Image: Ashcroft et al 2019.

Moreover, the authors found a “moderate and relatively stable relationship between El Niño–Southern Oscillation (ENSO) and annual variations of total rainfall and the number of raindays.”

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climate-debate

40-Year Meteorologist Says Public “Being Fed Bill Of Goods” By Climate Alarmists On Hurricanes, Tornadoes

by P. Gosselin, April 14, 2019 in NoTricksZone

At the latest Saturday Summary at Weatherbell Analytics, Joe Bastardi, a well-known 40-year veteran of meteorology, looks at tornadoes and hurricanes.

Although many meteorologists and climatologists confirm that there is no data suggesting global warming is causing more frequent and intense tornado and hurricane activity, there is a small but influential alarmist group who claim otherwise. And it’s no surprise who the click-baiting media parrot at maximum volume.

Landfalling hurricanes downward trend

At the 5:45 mark, Joe presents a chart depicting the frequency of US landfalling hurricanes since 1900:

 

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climate-debate

BBC Repeat Fake Extreme Weather Disaster Claims

by P. Homewood, February 9, 2019 in NotaLotofPeopleKnowThat

Politicians and policymakers have failed to grasp the gravity of the environmental crisis facing the Earth, a report claims.

The think-tank IPPR says human impacts have reached a critical stage and threaten to destabilise society and the global economy.

Scientists warn of a potentially deadly combination of factors.

These include climate change, mass loss of species, topsoil erosion, forest felling and acidifying oceans.

The report from the centre-left Institute for Public Policy Research says these factors are “driving a complex, dynamic process of environmental destabilisation that has reached critical levels.

“This destabilisation is occurring at speeds unprecedented in human history and, in some cases, over billions of years.”

The IPPR warns that the window of opportunity to avoid catastrophic outcomes is rapidly closing.

The authors urge three shifts in political understanding: on the scale and pace of environmental breakdown; the implications for societies; and the subsequent need for transformative change.

​They say since 2005, the number of floods across the world has increased by 15 times, extreme temperature events by 20 times, and wildfires seven-fold.

At least climate change features in policy discussions, they say – but other vitally important impacts barely figure.

What issues are being under-played?

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climate-debate

New GWPF Paper Shows Hurricanes Are Not Getting Worse

by P. Homewood, January 14, 2019 in NotaLotofPeopleKnowThat

https://www.thegwpf.org/content/uploads/2019/01/Homewood-Hurricanes.pdf

I am pleased to report that the GWPF have now published my latest paper on hurricane trends.

It demonstrates that, contrary to popular myth, hurricanes are not getting more frequent or more powerful.

The paper is based throughout on official data, scientific papers and IPCC reports.

Here is the Executive Summary:

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better to know...?, climate-debate

Another Climate Propaganda Story Promoting the Normal as Abnormal

by Dr Tim Ball, January 8, 2019 in WUWT

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Other stories focus on a pattern or change in a pattern again with the idea that it is new or abnormal. Headlines like this one from 2012, “Why have there been more tornadoes than usual this year?” Often, they are suggestive such as this 2017 New York Times story. “The 2017 Hurricane Season Really Is More Intense Than Normal.” When you read the story, you find, as is usually the case, that the caveats at the end indicate it is not unusual. The problem is the headline already set the pattern in the public mind.

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climate-debate

U.S. Media Bans Scientific Dissent – Claim Wildfires, Floods, Droughts, Hurricanes Are Human-Controlled

by K. Richard, January 7, 2019 in NoTricksZone

NBC News’ Chuck Todd recently asserted that we humans can control the climate and the frequency or intensity of extreme weather events (hurricanes, floods, droughts) and disasters (wildfires) with our CO2 emissions. He has declared the science is “settled” on this point and therefore no “denier” is allowed on his Meet the Press program. But Todd and the members of his panel have recited claims that are contravened by observational evidence and scientific publications.

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better to know...?, climate-debate

Kerala Floods “Likely Due To Climate Variability, Not AGW”–New Study

by P. Homewood, January 5, 2019 in NotaLotofPeopleKnowThat

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Since there is no increase in mean and extreme precipitation in Kerala over the last six decades, the extreme event during August 2018 is likely to be driven by anomalous atmospheric conditions due to climate variability rather anthropogenic climate warming. The severity of the Kerala flood of 2018 and the damage caused might be affected by several factors including land use/ land cover change, antecedent hydrologic conditions, reservoir storage and operations, encroachment of flood plains, and other natural factors. The impacts of key drivers (anthropogenic and natural) on flood severity need to be established to improve our understanding of floods and associated damage.

http://www.geosocindia.org/index.php/jgsi/article/view/137443

climate-debate

Extreme weather is the most likely and severe threat facing humanity!

by P. Homewood, November 8, 2018 in NotaLotofPeopleKnowThat

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My very first foray into climate blogging was an analysis of extreme weather events in 1971. (I wrote it in 2011, so it was not a cherrypicked year, merely a nice round 40 years before.)

I won’t bore you with it again, as it was basically just a very long list. You can see it here though.

But here is a summary, which goes to show that extreme weather is the norm, not the exception:

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climate-debate

The rise of Climate superstition: Droughts, heatwaves, random noise is “proof” of anything you like

by JoNova, August 7, 2018

All around the world the climate druids are at work.

Show me the error bars

Once upon a time a scientist talked about thirty year trends and anachronistic things like “confidence intervals”. Now, thanks to the discovery of Unscience, any noisy, random short data is fair game to be declared undeniable climate change. Periods of flooding also qualify, as do periods of nice weather, though strangely no one mentions those. Where are the headlines? If climate change caused drought on the East Coast of Australia, it’s also causing average rain and good crops in Western Australia.

In terms of scientific data analysis we don’t get that many droughts or six-day-August-heatwaves to analyze. They’re complex phenomena caused by multiple factors and we only have short records. This makes them ideal to be oversold to hapless folk as a “sign” of climate change.

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climate-debate

Weather-related Natural Disasters: Should we be concerned about a reversion to the mean?

by Prof. Roger Pielke Jr, July 31, 2017, University of Colorado Boulder

The world is presently in an era of unusually low weather disasters. This holds for the weather phenomena that have historically caused the most damage: tropical cyclones, floods, tornadoes and drought. Given how weather events have become politicized in debates over climate change, some find this hard to believe. Fortunately, government and IPCC (Intergovernmental Panel on Climate Change) analyses allow such claims to be adjudicated based on science, and not politics.  Here I briefly summarize recent relevant data.

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US Climate Report Edits Out Highly Embarrassing Section

by Paul Homewood, August 10, 2017, in WUWT

I mentioned in my previous post that the latest draft climate report, published in June, had seemingly left out a rather embarrassing table from the Executive Summary, one that had previously been written into the Third Draft, published last December.

As the link to the Third Draft had disappeared from the NYT, I could not show it.

However, Michael Bastasch, writing over at WUWT, did have the link, so we can now compare the relevant sections.

See also here