Home |
Search |
Today's Posts |
![]() |
|
uk.sci.weather (UK Weather) (uk.sci.weather) For the discussion of daily weather events, chiefly affecting the UK and adjacent parts of Europe, both past and predicted. The discussion is open to all, but contributions on a practical scientific level are encouraged. |
Reply |
|
LinkBack | Thread Tools | Display Modes |
#21
![]() |
|||
|
|||
![]() "lawrence Jenkins" wrote in message ... Soryy to post this way I'm on another PC using the BT ISP and they are useless I only get fragments of the NG on there. So I'm using google to read and BT to post. I could post from google but I just can't be arsed with another user no and password. Anyhow Col made the point that Co2 rises had gone hand in hand with World temperature increases That's not strictly true. The record shows that temps actually fell between 1940 ish through to the mid 70's http://www.cru.uea.ac.uk/cru/info/warming/ I was aware of this (small) dip, indeed I even recal the scares in the mid 70's that said we were heading for another ice age ![]() However whatever way you look at it, the trend is upwards. What is interesting about that graph is that the trend from 1905 to 1940 is very similar to 1975 to now. Did metereologists in 1940 wonder what was going on or did they simply put it down to natural variability? My reckoning is that this was the first 'spurt' of global warming but nobody recognised it as such at the time. Whereas Co2 actually started to rise rapidly plus the fact it had been increasing steadily since the beginning of the 20th century So explain the dip based on the simple equation more Co2 = increased linear warming The 1940-75 period was not so much of a dip, more of a levelling of temperature. It was a pause for breath in the general increase in temps that at been observed since the beginning of the century. As for it's cause, well probably the natural variability of the climate held temperatures down during this period. And it's interesting to see that even today the rate of rise appears to be slackening off, just as it did around 1940. Perhaps we will enter a several decade long period of roughly stable temperatures, just as we did then? Col -- Bolton, Lancashire. 160m asl. http://www.reddwarfer.btinternet.co.uk http://www.reddwarfer.btinternet.co....rPictures.html |
#22
![]() |
|||
|
|||
![]()
On Fri, 31 Dec 2004 22:23:19 -0000, Col wrote in
Whereas Co2 actually started to rise rapidly plus the fact it had been increasing steadily since the beginning of the 20th century So explain the dip based on the simple equation more Co2 = increased linear warming The 1940-75 period was not so much of a dip, more of a levelling of temperature. It was a pause for breath in the general increase in temps that at been observed since the beginning of the century. As for it's cause, well probably the natural variability of the climate held temperatures down during this period. This particular period was a puzzle for the first IPCC report back in 1991(?). Later work suggested that another form of pollution was a large factor in this cooling trend - particulates principally from industry when it was at its dirtiest. Fuels high in sulphur (e.g.coal) also produced sulphates. The solar reflective qualities of these is thought to have offset the warming effect of the greenhouse gases during that period. Once industry began to clean up its act, the latter effect began to dominate again. Once the particulates were incorporated into the models, they too suggested cooling should occur in that period. Support for this is given by the contrast between the two hemispheres. It was the dirty Northern Hemisphere which showed the cooling trend. The southern one only showed a levelling of temperatures as you say. -- Mike 55.13°N 6.69°W Coleraine posted to uk.sci.weather 31/12/2004 22:32:37 UTC |
#23
![]() |
|||
|
|||
![]()
What this demonstrates, is proof that the global warming argument is
just nonsense. If the global warming argument really had solid credibility, then they would not resort to such bull**** allegations, would they? They would not have to. The fluffy-brained (of which the media has much more than its fair share) would like to see natural disasters as all of a piece and they think, at the moment, that global warming is God, the doer and maker of all things. This is sheer nonsense, as we all know, but it doesn't diminish in any way whatsoever the fact of global warming, as demonstrated by the temperature record. Tudor Hughes, Warlingham, Surrey |
#24
![]() |
|||
|
|||
![]()
Mike Tullett wrote:
On Fri, 31 Dec 2004 22:23:19 -0000, Col wrote in Whereas Co2 actually started to rise rapidly plus the fact it had been increasing steadily since the beginning of the 20th century So explain the dip based on the simple equation more Co2 = increased linear warming The 1940-75 period was not so much of a dip, more of a levelling of temperature. It was a pause for breath in the general increase in temps that at been observed since the beginning of the century. As for it's cause, well probably the natural variability of the climate held temperatures down during this period. This particular period was a puzzle for the first IPCC report back in 1991(?). Later work suggested that another form of pollution was a large factor in this cooling trend - particulates principally from industry when it was at its dirtiest. Fuels high in sulphur (e.g.coal) also produced sulphates. The solar reflective qualities of these is thought to have offset the warming effect of the greenhouse gases during that period. Once industry began to clean up its act, the latter effect began to dominate again. Once the particulates were incorporated into the models, they too suggested cooling should occur in that period. Support for this is given by the contrast between the two hemispheres. It was the dirty Northern Hemisphere which showed the cooling trend. The southern one only showed a levelling of temperatures as you say. I don't understand why this 1940-75 period should have been a puzzle for the IPCC in 1991 since it was explained in 1975. GARP studied paleoclimatic records covering 700,000 years. The surface temperature data was analysed in terms of five cycles, ranging from 100,000 to 100 years. The 100-year cycle peaked around 1940 with a temperature change of -0.0121 K/decade at 1975. The sum of the cycles gave a figure for 1975 of -0.154 K/decade. Graham |
#26
![]() |
|||
|
|||
![]() "TudorHgh" wrote in message ... What this demonstrates, is proof that the global warming argument is just nonsense. If the global warming argument really had solid credibility, then they would not resort to such bull**** allegations, would they? They would not have to. The fluffy-brained (of which the media has much more than its fair share) would like to see natural disasters as all of a piece and they think, at the moment, that global warming is God, the doer and maker of all things. This is sheer nonsense, as we all know, but it doesn't diminish in any way whatsoever the fact of global warming, as demonstrated by the temperature record. Tudor Hughes, Warlingham, Surrey It's all part of the "blame culture". The world is both a beautiful and a dangerous place, it is a place of opportunity, a place where we can can learn, a place where we can demonstrate oneness, caring and service to others. The world *is* and we have to make the most of it and care for it and it's peoples. Peace and love, Will. -- " Visit Haytor meteorological office at http://www.lyneside.demon.co.uk/Hayt...met_office.htm " ------------------------------------------------------------------------------- A COL BH site in East Dartmoor at Haytor, Devon 310m asl (1017 feet). mailto: www: http://www.lyneside.demon.co.uk DISCLAIMER - All views and opinions expressed by myself are personal and do not necessarily represent those of my employer. ------------------------------------------------------------------------------- |
#27
![]() |
|||
|
|||
![]()
On Sun, 2 Jan 2005 09:26:17 -0000, Will Hand wrote:
The world is both a beautiful and a dangerous place, it is a place of opportunity, a place where we can can learn, a place where we can demonstrate oneness, caring and service to others. The world *is* and we have to make the most of it and care for it and it's peoples. Hear, hear. There is sweet FA we can do about natural disasters, all we can do is react in the best way we can; dispose of the dead, care for the living. -- Cheers Dave. pam is missing e-mail |
#28
![]() |
|||
|
|||
![]() "Will Hand" wrote without any reference to "god" The world is both a beautiful and a dangerous place, it is a place of opportunity, a place where we can learn, a place where we can demonstrate oneness, caring and service to others. The world *is* and we have to make the most of it and care for it and it's peoples. Peace and love, I, as an atheist/humanist, cannot disagree one iota. Well said Will. Jack |
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|
![]() |
||||
Thread | Forum | |||
Global Polluters call Global Warming "Global Cooling" | sci.geo.meteorology (Meteorology) | |||
NOAA and the Indian Ocean Tsunami | Latest News | |||
Tsunami and Global Warming | uk.sci.weather (UK Weather) | |||
Tsunami and Global Warming | uk.sci.weather (UK Weather) | |||
Extreme weather prompts unprecedented global warming alertExtreme weather prompts unprecedented global warming alert | sci.geo.meteorology (Meteorology) |