You've heard the
rhetoric. Global Warming/Climate Change/Climate Emergency is
increasing severe weather events. There will be more storms. More
destruction.
Statements like this
from my friends in Greenpeace (of whom I have none) Link Here
[quote]
“The frequency and strength of storms is
increasing, leaving destruction in their wake.”
[unquote]
Lurid stuff.
Frightening even.
But is it true?
Is the frequency and
strength of storms increasing?
The answer to that
is No.
The frequency and
strength of storms is not increasing. In fact for the last thirty
years the average wind speed across large sections of the planet have
been in decline, as have severe storm events. You can trace a slowing in global wind speeds right back to the 1960's.
From Antarctica
right up to near the North Pole wind speeds have been going down.
I’ll concentrate
here on the UK but this really is a global phenomena. (see references later)
Here is the
frequency of high wind gusts events across the UK by year which the Met Office states they use as an indicator of "storminess".
Notice all gusts are in decline and that includes the extreme gusts that are supposed to be increasing. (MET office Data taken from Here)
Notice all gusts are in decline and that includes the extreme gusts that are supposed to be increasing. (MET office Data taken from Here)
Even though they
have adopted a silly storm naming scheme (one suspects in order to
add a little drama to otherwise common or garden weather events) the
Met Office have come out and made clear that there is no link between Global Warming and UK storm frequency.
But they cannot quite bring themselves to reference their own data showing a slow decline in storminess since the 1990's. The Met Office webpage on Wind Storms is Here
But they cannot quite bring themselves to reference their own data showing a slow decline in storminess since the 1990's. The Met Office webpage on Wind Storms is Here
The global
slowing of wind speed is emphatic and serious enough to now be a research project for EU. (Here)
Even dear old Wikipedia has a (somewhat rudimentary) page on it Here
Even dear old Wikipedia has a (somewhat rudimentary) page on it Here
The best page is
probably This Page from the Institute of Physics. (with caveats –
see later)
Here’s a few more links that give useful insight into the phenomena.
ABC News Australia
Cosmo Magazine
Nature Magazine
So, while the panic laden Drama Queens in Greenpeace and Extinction Rebellion would like you to think that storms are dangerously increasing, actually the reverse is true.
ABC News Australia
Cosmo Magazine
Nature Magazine
So, while the panic laden Drama Queens in Greenpeace and Extinction Rebellion would like you to think that storms are dangerously increasing, actually the reverse is true.
Bad things always
happen. There will always be storms. But today there are less of them
and they are less potent.
But you will not
hear anyone suggesting that this is a “good thing”.
Even the Phys.org article above struggled hard to find some bad outcomes yet failed to address any of the advantages of lower wind speed and less storms.
Even the Phys.org article above struggled hard to find some bad outcomes yet failed to address any of the advantages of lower wind speed and less storms.
Yet when we look to
(say) coastal defence, less storms mean coastal defence systems last
longer. Less storms mean less storm surges. Less storms mean less
wind damage. Less lost work days and less insurance claims.
The list goes on.
Even a merely lower average wind speed must result in less wear and tear on external structures. I am sure you can think a few more advantages of what is in essence more benign weather.
The list goes on.
Even a merely lower average wind speed must result in less wear and tear on external structures. I am sure you can think a few more advantages of what is in essence more benign weather.
By the way while the
linked reports are all reasonably recent, this is far from new
knowledge. Its just appears to have been kept pretty quiet until now.
It is interesting to
note that while these reports all mention the possible ill affect on
wind-turbines the reports make great efforts to (incorrectly)
indicate that little is known about the wind speed at wind-turbine height.
I first blogged on
it and how it can affect the wind turbine farce using data from
Garrard-Hassan. But that data from 2011 which shows the slowing of
wind speed across Northern Europe seems to have been (how should we say…) overlooked.
The full 2011 post is Here: Wind Speed Decline: A Blip or a Trend?
Here's the Garrard Hassan graph (this only goes to 2005)
The full 2011 post is Here: Wind Speed Decline: A Blip or a Trend?
Here's the Garrard Hassan graph (this only goes to 2005)
But whatever the
effects on marginal power producers, clearly wind speed is something
that is getting more benign. Maybe it is due to Global Warming, maybe
not. But whatever, wind speed is not getting worse.
Global Warming may
well have deleterious affects. But (like this) there may also be
positive outcomes
It’s just nobody
wants to tell you about them.