Re: whenwhen Skye was a sub-tropical paradise with warm shallow seas

On Thu, 25 Jul 2024 13:56:02 -0400, the following appeared
in talk.origins, posted by William Hyde
<wthyde1953@gmail.com>:

Bob Casanova wrote:

On Wed, 24 Jul 2024 19:41:41 -0700, the following appeared
in talk.origins, posted by John Harshman
<john.harshman@gmail.com>:
 

On 7/24/24 4:20 PM, erik simpson wrote:

On 7/24/24 3:52 PM, Bob Casanova wrote:

On Wed, 24 Jul 2024 15:35:12 -0600, the following appeared
in talk.origins, posted by André G. Isaak
<agisaak@gm.invalid>:
>

On 2024-07-24 15:00, burkhard wrote:

It isn't any longer now, that much I can tell you - though we braced
the
cold and went for a swim yesterday. Not exactly Skye, though we can see
it from where we are (Malaig)

>
I envy you. It was 37° C here yesterday.
>

Oooh, a low-temp sauna! ;-)
>
It's varied form 42C to 47C (daytime highs) here this month,
with dew points from -5C to 23C. A "dry heat" it's not, at
this time of year. :-(

>

When it gets to that in Skye, global warming won't be deniable by anybody.
>

You underestimate the abilities of some people to deny. Incidentally,
Sunday and Monday were the two hottest days in recorded history (world
average).
>

"Recorded history" dating back...200 years?

>
The instrumental record does not go back that far in the sense of global
coverage,  though isolated areas do have longer records - but there is
then the question of accuracy, reliability, and so forth.
>
We know the world is much warmer than in 1824 from a mass of data, but
temperature records form a small part of this.
>
In later times when we have more measurements, but still not global
coverage, a lot can be done with statistical methods, but the fewer and
worse distributed the observations, the larger the error bars.
>
How far in the past we have a global temperature estimate accurate to
within .2C is a question to which I don't have an answer.  I would
suspect no less than 50 years or so, and possibly a hundred.
>

That was pretty much my point, that to say something is the
highest in recorded history is a bit disingenuous when
recorded history of temperatures goes back no further than,
at most, the invention of the thermometer, and until the
past few decades it's far from "global". Yes, we can glean
some information from such things as ice cores and tree
rings, but neither is so fine-grained as to allow the sort
of daily measurements we see today. And the further back we
go, the more coarse the measurements temporally; at 1Mya
it's probably no finer than a thousand-year interval, if
that.

>
The good news for me is that this summer I'm not coughing up bits of
tree.  Of course, that is largely because so much of the susceptible
area is still ash from last year.  But I'll take all the small victories
I can get.
>

Where are you (in general)? I'm in the desert below Phoenix,
and while we get frequent dust storms, even when there are
wildfires nearby say within 100 miles or so) we hardly ever
get smoke; wind patterns, I suppose.

>

--

Bob C.

"The most exciting phrase to hear in science,
 the one that heralds new discoveries, is not
 'Eureka!' but 'That's funny...'"

- Isaac Asimov