Keith Harris wrote:

On Wednesday, 15 January 2020 12:22:20 UTC, wrote:
On Wednesday, January 15, 2020 at 10:37:47 AM UTC, Spike wrote:


The Roman Warm Period? The Medieval Warm Period? But in those
times atmospheric CO2 was lower than at present, meaning crops,
etc, would be poorer. But humankind survived that heating of the
planet.

I expect the data-collectors of the group could easily say how
far south from, say, the environs of Stoke-on-Trent one would
have to travel to experience a 1.5degC increase in the climate -
I'm guessing somewhere as far as Salisbury or Chichester.


--
Spike

We have already surpassed the warmth of the MWP. I have a vague
recollection of HH Lamb (Climate History and the Modern World, and
the previous 'Climate' book) referring to it being 0.7C warmer than
the coldest part of the C20. The difference is that we have warmed
so quickly this time. Some people kept reading those sources for
too long into the current warming period. It is nice to keep
textbooks but we have to be careful as the details can become out
of date.

Spike, you attach a great significance to the MWP and the LIA -
neither were truly global phenomena in the sense of the current
global warming crisis.

PS if you were confident in your assertions, would you not identify
yourself?

Julian Mayes

Well done Sir David Attenborough hopefully the message is finally
getting through!
https://www.bbc.co.uk/news/science-environment-51123638 I'm sick of
hearing from deniers now.

Keith (Southend)

Well said, indeed. Unfortunately, it seems that the message still isn't
getting through. John Gummer (Lord Deben) was on PM this afternoon
discussing the subject with Evan Davies. Lord Deben is Chairman of the
UK's Independent Committee on Climate Change. He agreed with David
Attenborough that action was needed now.That sounded promising but then
it transpired that what he meant by 'now was development of a good plan
for the UK to present to COP26 in Glasgow in November. The interim time
had to be spent on preparing budgets etc. He seemed to be saying that
the actual action had to be taken within the next 10 years. It didn't
seem to have registered with him that we don't have that sort of time.
I was busy with something else at the time so I couldn't concentrate
fully on the programme so I might have picked some of it up wrongly.
I'll have another listen when it appears on BBC Sounds.

--
Norman Lynagh
Tideswell, Derbyshire
303m a.s.l.
https://peakdistrictweather.org
twitter: @TideswellWeathr