|
Post by louise on May 14, 2011 14:12:31 GMT 1
(Incidentally I had never heard to the Dustbowl being attributed to farming methods before Perhaps that's because you are not as well read as you think you are?
|
|
|
Post by louise on May 14, 2011 14:24:12 GMT 1
|
|
|
Post by marchesarosa on May 14, 2011 19:10:13 GMT 1
I think it is a little far fetched to claim farming methods caused the dustbowl.
The whole of the USA suffered high temperatures in the 1930's not just farming areas.
|
|
|
Post by louise on May 14, 2011 19:17:04 GMT 1
I think it is a little far fetched to claim farming methods caused the dustbowl. The whole of the USA suffered high temperatures in the 1930's not just farming areas. You may think this, science (once again) disagrees with you. The dust bowl was created by the farmers having stripped away the prairie grass that protected the soil in times of natural drought - fact.
|
|
|
Post by marchesarosa on May 14, 2011 19:24:33 GMT 1
How unusual! Louise is recognising some anthropogenic causes of climate change apart from CO2. Progress! However, the high temperatures in the 1930s played their part in creating the dustbowl, too. It wasn't down to CO2, though.
|
|
|
Post by louise on May 14, 2011 19:33:58 GMT 1
How unusual! Louise is recognising some anthropogenic causes of climate change apart from CO2. You seem to be having memory problems - on very many occasions on this site I have mentioned that interventions by man such as deforestation, land use change, etc have played a part in causing disruption due to flooding and drought. You claim that the dust bowl was due to drought alone - you are wrong. What do you think may have caused the extreme floods, drought and tornado swarm in the same part of the USA in recent weeks?
|
|
|
Post by marchesarosa on May 14, 2011 19:53:08 GMT 1
'What do you think may have caused the extreme floods, drought and tornado swarm in the same part of the USA in recent weeks?"
A concatenation of multiple and probably unrelated meteorological events, Louise, plus maybe some human activity. Definitely not CO2, though!
But what I think is irrelevant, I'm no meteorologist and that's who you should consult!
|
|
|
Post by louise on May 14, 2011 19:59:54 GMT 1
'What do you think may have caused the extreme floods, drought and tornado swarm in the same part of the USA in recent weeks?" A concatenation of multiple and probably unrelated meterological events, Louise Definitely not CO2! How do you know with such certainty?
|
|
|
Post by louise on May 15, 2011 10:16:36 GMT 1
|
|
|
Post by marchesarosa on May 15, 2011 11:34:19 GMT 1
What evidence is there for "increased" water vapour to drive all these weather extremes other than the output of models?
The consensus amongst BOTH sides in the Hurricane wars is that there is no anthropogenic effect discernible in hurricane activity. NOAA has expressly denied the recent tornadoes have a human fingerprint on them.
'Experts' differ. Live with it. You know what happened to the boy who cried wolf once too often.
Your alarmism is rooted in your emotions not in reality, Louise.
I do not have any certainty about how the climate functions, Louise, and neither does any other sane person. I just use my judgement, read a lot and disregard self-serving scaremongers.
|
|
|
Post by louise on May 15, 2011 12:55:42 GMT 1
What evidence is there for "increased" water vapour to drive all these weather extremes other than the output of models? Well, there's increased precipitation in areas that are not used to that amount of rain/snow.
|
|
|
Post by louise on May 15, 2011 13:04:30 GMT 1
Your alarmism is rooted in your emotions not in reality, Louise. Please show any posts where I have been 'emotional' I do not have any certainty about how the climate functions, Louise, and neither does any other sane person. I just use my judgement, read a lot and disregard self-serving scaremongers. Yet you are 'certain' that CO2 does not play a role in climate change. I have stated countless times here on this site that I am NOT certain regarding how much of a role CO2 plays. I believe it must have some role - the laws of physics says so - yet you constantly misrepresent my views as if I believe that all climate change is driven by CO2. Is this an example of how you 'do' science? Misrepresent the evidence (in this case my opinions) to support your own view?
|
|
|
Post by marchesarosa on May 15, 2011 16:29:05 GMT 1
Yet another of your assertions based upon a false assumption, Louise. Anthropogenic CO2 MAY play a trivial part in temperature change. Global CO2 and its role in climate as a whole is a different matter. Nature does not make a distinction. Do you know the difference?
Just as you conflate "global warming" with "anthropogenic global warming" and "climate change" with "man-made climate change" you, unsurprisingly, conflate man-made CO2 with all the rest.
These are Climate 101 pointers, Louise. Internalise them before stepping into territory you don't understand.
CO2 does not cause tornadoes, hurricanes, floods, heatwaves or droughts. Of that I am pretty sure.
Take a look at the Pacific Ocean as a change from CO2, Louise, if you want to know more about what your alarmist pals call "climate drivers".
|
|
|
Post by marchesarosa on May 15, 2011 16:39:31 GMT 1
"INCREASED" in comparison to what and when, Louise? Most of the world doesn't have a record of precipitation more than a few decades long. Even if satellites become able to measure precipitation and water vapour it will be centuries before we can draw comparisons about climate cycles. You and your ilk CLAIM far too much on the basis of trivial "knowledge". Show a little more humility regarding your ignorance and I'm not talking about the latest AGW buzzword "uncertainty". I'm talking plain IGNORANCE - the unknown unknowns in Rumsfeldt parlance.
|
|
|
Post by marchesarosa on May 18, 2011 11:19:06 GMT 1
Have a look at this article on the current Texas drought set in the wider regional and historical context. May 12, 2011 United States precipitation trends - Texas droughtBy Joseph D’Aleo, CCM, WeatherBell Analytics Chief Forecaster Above is the the NCDC Texas Climate-at-a-Glance annual precipitation. It exhibits a slight upward trend of 0.08 inches/decade for the period form 1895 to 2010. www.icecap.us/Are you surprised, Louise, that there is virtually NO trend in Texas precipitation over more than a century? The SW United states has always been drought-prone. It is what finished off the Pueblo culture in about 1250 AD (coincident with the beginning of the cooler, drier Little Ice Age). More on the Pueblo Culture here en.wikipedia.org/wiki/Ancient_Pueblo_Peoples..... large Pueblo I sites near Dolores, Colorado.. were established during periods of above-average rainfall. This would allow crops to be grown without benefit of irrigation. At the same time, nearby areas experiencing significantly drier patterns were abandoned. The ancient Pueblos attained a cultural "Golden Age" between about 900 and 1130. During this time, generally classed as Pueblo II, the climate was relatively warm and rainfall mostly adequate. Communities grew larger and were inhabited for longer periods of time. ..... After approximately 1150, North America experienced significant climatic change in the form of a 300-year drought called the Great Drought....
|
|