http://www.engineeringnews.co.za
  SEARCH
Login
R/€ = 13.13Change: 0.02
R/$ = 12.04Change: 0.03
Au 1188.10 $/ozChange: 1.50
Pt 1119.50 $/ozChange: 0.00
 
 
Note: Search is limited to the most recent 250 articles. Set date range to access earlier articles.
Where? With... When?








Start
 
End
 
 
And must exclude these words...
Close Main Search
Close Main Login
My Profile News Alerts Newsletters Logout Close Main Profile
 
Agriculture   Automotive   Chemicals   Competition Policy   Construction   Defence   Economy   Electricity   Energy   Environment   ICT   Metals   Mining   Science and Technology   Services   Trade   Transport & Logistics   Water  
What's On Press Office Tenders Suppliers Directory Research Jobs Announcements Letters Contact Us
 
 
 
RSS Feed
Article   Comments   Other News   Research   Magazine  
 
 
Oct 17, 2008

Solar activity the primary driver of global temperature rise

Back
Environment|Industrial|Water|Power|Water
Environment|Industrial|Water|Power|Water
environment|industrial|water-company|power|water
© Reuse this The period of global warming that we have experienced on our planet over the last century, which has seen a rise in temperature of some 0,6 oC, does not correlate at all with a rise in the concentration of atmospheric carbon dioxide (CO2), but is does correlate with solar activity. Indications are that solar activity is the primary driver of the variation in global temperature.



Even more compelling is the fact that there exists a well-documented Roman Warm period from the time of the Roman Caesars, and a Medieval Warm Period, both of which correlate with solar activity, but certainly can have nothing whatever to do with CO2 produced by any human industrial activities.

Further, earlier global warming periods were always accompanied by great human prosperity, and not by gloom and doom, as today's global warming adherents are forever saying. In fact, it was periods of global cooling that were bad for the world's population and for the environment as a whole.

In AD 793, the Vikings burst upon their European neighbours, starting with England. One venture took them into eastern Europe. There, they founded the Russian State at Kiev, in Ukraine, in 882 AD.

They also moved into France, as the Normans, and became a power in the Mediterranean as well as in Europe.

Two centuries of global warming then followed, from about 930 AD. This warm weather assisted the Vikings in taking Iceland from the Irish. The Vikings settled in Greenland and explored as far west as Newfoundland, in North America.

During this period, around 1000 AD, grain grew in northern Norway and grapes in northern England. The signs of warm-weather crops in these settlements puzzled modern archaeologists when they found evidence of these crops in what they thought had always been an iced-over region.

High in the mountains in central Europe, abandoned ancient mines were reopened when the area thawed. In what was thought of as the arid region of New Mexico, Amerindians of the Anasazi ethic group built canyon towns and irrigated crops as the climate warmed and rain became a regular feature of the area.

Rain also soaked the grasslands of Asia during the warm centuries, and nomadic horsemen thrived. This was great for the nomads but not so great for some of the other tribes in the region, who got beaten up by the nomads, who then acquired great mobility over the grasslands covered in food for the horses.

In China, a magnetic compass was invented – the earliest practical compass was described in a Chinese military manual of 1044. It was a magnetised fish shape that floated on water. Compasses soon evolved into magnets hanging on silk threads. The importance of the compass is that it allowed people to confidently sail far away from land in small ships.

Administrative reforms in China, starting in 1068, transformed the Chinese empire into the first economy managed on modern lines, relying on equitable money taxes rather than forced labour. The economy and the population boomed during the warm years, and government loans encouraged farmers to plant a new variety of rice from Indochina.

The Chinese seafarers continued to trade widely across South-East Asia and so spread their knowledge and goods, to the benefit of all.

In the meantime, in Middle America, around 1200, there was turmoil. Aztecs, from the north, entered the Valley of Mexico. They rose to power over their neighbours in about 1320.

It appears the reason why they moved and rose to power was the downturn in the climate, which began in about 1190. "Hey man, chill out" had a different meaning for them. Other sufferers from the cooling climate were the Anasazi, who were then forced, by drought, to abandon their canyon settlements. They moved to concentrate along the Rio Grande.

Starting in 1314, Europe was struck by repeated famines. The mountain mines were abandoned again, and the Vikings were frozen out of their settlements. By 1342, the Vikings' customary route to Greenland had been blocked by ice.

The Eurasian steppes became the scene of terrible military events. When the rainfall diminished from 1160, the numerous horsemen were happy for a warlord to tell them to attack the farming villages.

The break-out of the Mongols and their allies, the Turks, exceeded any previous break-out in ferocity and scope. In 1211, the Chinese Wall was breached. Baghdad, amid its decaying irrigation works, fell in 1258 to the Mongols.

A crash in the population of medieval Eurasia, already evident in China by 1290, was made worse by disease carried by the Mongol supply and trading caravans.

The Black Death first appeared among the Chinese in 1331, killing more than a quarter of them, and in 1346 a Mongol army in southern Russian spread it to Europe.

The Medieval Warm Period was past, and the Little Ice Age was really on its way.


Edited by: Martin Zhuwakinyu
Creamer Media Senior Deputy Editor
© Reuse this Comment Guidelines (150 word limit)
 
 
 
 
 
 
 
 
Other Dr Kelvin Kemm News
Government continues to talk of introducing a carbon tax on industry.  The carbon tax is wrong and should not be introduced at all. The principle of the carbon tax is that it is supposed to ‘save the planet’.  The idea is to inflict pain on industry for emitting...
In our modern world, there is more and more science penetrating the world of ordinary people. We have cellphones, TV remotes and the Internet. We also have washing machines, stoves and food mixers, which are now programmable or contain fancy sensors to automatically...
I wish to compliment the pointsmen who are seen on duty at various traffic congestion points. They are terrific;  I have watched them for the last couple of years. Of late, I have been seeing the pointsmen daily because the road is being upgraded near my office and,...
More
 
 
Latest News
IMD World Competitiveness Center director Arturo Bris
Updated 3 hours ago South Africa slipped one position, from 52 to 53, in the latest world competitiveness ranking, which highlighted power and infrastructure shortfalls, high youth unemployment, as well as inadequate education and technical skills availability as key challenges to the...
Updated 6 hours ago JSE-listed Dipula Income Fund reported that its distributable earnings grew 33.2% in the six months ended February 28, translating into a combined growth of 6.8% in distributions for both A- and B-linked units. The distribution attributable to the A-linked units was...
Updated 6 hours ago JSE-listed Growthpoint Properties’ Kirstenhof Office Park, in Johannesburg, has become the hundredth building in South Africa to achieve a Green Star SA certification from the Green Building Council of South Africa (GBCSA), securing a 5-Star Green Star: Existing...
More
 
 
Recent Research Reports
Steel 2015: A review of South Africa's steel sector (PDF Report)
Creamer Media’s Steel 2015 report provides an overview of the key developments in the global steel industry and particularly of South Africa’s steel sector over the past year, including details of production and consumption, as well as the country's primary carbon...
Projects in Progress 2015 - First Edition (PDF Report)
In fact, this edition of Creamer Media’s Projects in Progress 2015 supplement tracks developments taking place under the Renewable Energy Independent Power Producer Procurement Programme, which has had four bidding rounds. It appears to remain a shining light on the...
Electricity 2015: A review of South Africa's electricity sector (PDF Report)
Creamer Media’s Electricity 2015 report provides an overview of State-owned power utility Eskom and independent power producers, as well as electricity planning, transmission, distribution and the theft thereof, besides other issues.
Construction 2015: A review of South Africa’s construction sector (PDF Report)
Creamer Media’s Construction 2015 Report examines South Africa’s construction industry over the past 12 months. The report provides insight into the business environment; the key participants in the sector; local construction demand; geographic diversification;...
Liquid Fuels 2014 - A review of South Africa's Liquid Fuels sector (PDF Report)
Creamer Media’s Liquid Fuels 2014 Report examines these issues, focusing on the business environment, oil and gas exploration, the country’s feedstock supplies, the development of South Africa’s biofuels industry, fuel pricing, competition in the sector, the...
Water 2014: A review of South Africa's water sector (PDF Report)
Creamer Media’s Water 2014 report considers the aforementioned issues, not only in the South African context, but also in the African and global context, and examines the issues of water and sanitation, water quality and the demand for water, among others.
 
 
 
 
 
This Week's Magazine
While economic forecasts for the African continent are most favourable, African airlines may not be able to benefit from the expected growth in the region’s gross domestic product (GDP), International Air Transport Association VP: Africa Raphael Kuuchi has warned....
The Automotive Production and Development Programme (APDP) will need to change substantially post 2020, says Metair Investments South African operations COO Ken Lello. “We must not make tweaks. We have to change. What we are doing is not sustainable.”
Banking group Absa’s forecast is for the rand to end the year at around R13 against the dollar, weakening further to R13.50 by 2016, says Absa sectoral analyst Jacques du Toit. He warns that possible interest rate hikes in the US may see capital being pulled from...
The Dispute Resolution Centre at the Bargaining Council for the Civil Engineering Industry (BCCEI) is now open to handle party-to-party disputes. The BCCEI represents the interests of all level four to nine Construction Industry Development Board companies.
FREDRIK JEJDLING Sustainability becomes an important part of a business’ decision-making process
Communications technology firm Ericsson sub-Saharan Africa head Fredrik Jejdling says the company’s commitment to sustainability and corporate responsibility has been integrated into all facets of its operations, which has provided it with sustainable revenue...
 
 
 
 
 
 
 
 
 
Alert Close
Embed Code Close
content
Research Reports Close
Research Reports are a product of the
Research Channel Africa. Reports can be bought individually or you can gain full access to all reports as part of a Research Channel Africa subscription.
Find Out More Buy Report
 
 
Close
Engineering News
Completely Re-Engineered
Experience it now. Click here
*website to launch in a few weeks
Subscribe Now for $96 Close
Subscribe Now for $96