R/€ = 15.15Change: -0.13
R/$ = 14.28Change: -0.14
Au 1072.00 $/ozChange: -0.05
Pt 852.50 $/ozChange: 7.00
Note: Search is limited to the most recent 250 articles. Set date range to access earlier articles.
Where? With... When?

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 About Us
RSS Feed
Article   Comments   Other News   Research   Magazine  
Oct 17, 2008

Solar activity the primary driver of global temperature rise

© 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
Updated 6 hours ago The Paris twenty-first Conference of the Parties, or COP 2, is getting nearer.  More and more people are hoping for ‘success’ at the conference.  By this they mean that an international agreement will be signed, limiting carbon dioxide (CO2) emissions. Such an...
I read an article about the Communications Workers Union (CWU) threatening to strike yet again.  A court subsequently issued an interdict against any wild-cat strike action. The CWU Gauteng chairperson, Velaphi Zulu, then stated that the union had no intention of...
I am writing this column sitting in the airport just outside Hanoi, in Vietnam. I was invited by the Vietnamese nuclear authority to attend a seminar and give a presentation on the development of a Vietnamese nuclear power infrastructure. There were two foreign...
Latest News
Business confidence has dropped by a full 15 points over the past year to reach its lowest level in five years, the latest Rand Merchant Bank (RMB)/Bureau for Economic Research (BER) Business Confidence Index (BCI) has shown. After falling from 43 to 38 in the third...
JSE-listed beverage, food and nonperishable packaging manufacturer Nampak’s basic earnings a share rose 3% to 228.3c for the year ended September 30, from 221.7c the year before. The company also reported an increase in group revenue and trading profit of 13%, to...
As Parliament mulls the new regulatory framework to govern South Africa’s financial industry, the sector is preparing for its promulgation; however, it will require a complete “rethink” of the way regulators guide financial institutions. The tabling of the Financial...
Recent Research Reports
Water 2015: A review of South Africa's water sector (PDF Report)
Creamer Media’s Water 2015 Report considers the aforementioned issues, not only in the South African context but also in the African and global context in terms of supply and demand, water stress and insecurity, and access to water and sanitation, besides others.
Input Sector Review: Pumps 2015 (PDF Report)
Creamer Media’s 2015 Input Sector Review on Pumps provides an overview of South Africa’s pumps industry with particular focus on pump manufacture and supply, aftermarket services, marketing strategies, local and export demand, imports, sector support, investment...
Liquid Fuels 2015: A review of South Africa's liquid fuels sector (PDF Report)
Creamer Media’s Liquid Fuels 2015 Report examines these issues in the context of South Africa’s business environment; oil and gas exploration; fuel pricing; the development of the country’s biofuels industry; the logistics of transporting liquid fuels; and...
Road and Rail 2015: A review of South Africa's road and rail sectors (PDF Report)
Creamer Media’s Road and Rail 2015 report examines South Africa’s road and rail transport system, with particular focus on the size and state of the country’s road and rail infrastructure and network, the funding and maintenance of these respective networks, and...
Defence 2015: A review of South Africa's defence sector (PDF Report)
Creamer Media’s Coal 2015 report examines South Africa’s coal industry with regards to the business environment, the key participants in the sector, local demand, export sales and coal logistics, projects being undertaken by the large and smaller participants in the...
Real Economy Year Book 2015 (PDF Report)
There are very few beacons of hope on South Africa’s economic horizon. Economic growth is weak, unemployment is rising, electricity supply is insufficient to meet demand and/or spur growth, with poor prospects for many of the commodities mined and exported. However,...
This Week's Magazine
Updated 6 hours ago The BMW Group will invest R6-billion at BMW Group South Africa’s (BMW SA’s) Rosslyn plant to produce the next-generation X3 sports-activity vehicle (SAV) for the local and export markets. Rosslyn will continue production of the current 3 Series through its lifecycle,...
Updated 6 hours ago The lack of consequences for poor performance and transgressions on the part of contractors remains a significant hurdle to tackling South Africa’s service delivery challenges, delegates heard at the Consulting Engineers South Africa Infrastructure Indaba, on...
Updated 6 hours ago City of Ekurhuleni executive mayor Mondli Gungubele earlier this month officially named the city’s bus rapid transit (BRT) system, Harambee.
NICK CHRISTODOULOU As about 58% of data stored by organisations is dark, they must identify this dark data to expose risks and valuable information
Updated 6 hours ago About 58% of unstructured data stored by companies is dark data, which means that the value or regulatory importance of the data has not been determined. Subsequently, most of the stored data add costs, rather than increasing revenue or reduce regulatory risks, says...
BRIAN VERWEY Effective management, review and administration of non-core elements can improve business operations and increase revenue and decrease unforeseen risks
Updated 6 hours ago Effective logistics, import/export and manufacturing consulting services require detailed industry knowledge and experience, but can add significant value to these industries by providing expert advice on various technical elements in their value chains, says...
Alert Close
Embed Code Close
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
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