Best of the Week
Most Popular
1. Dollargeddon - Gold Price to Soar Above $6,000 - P_Radomski_CFA
2.Is Gold Price On Verge Of A Bottom, See For Yourself - Chris_Vermeulen
3.Dow Stock Market Trend Forecast 2018 - Nadeem_Walayat
4.Gold Price to Plunge Below $1000 - Key Factors for Gold & Silver Investors - P_Radomski_CFA
5.Why The Uranium Price Must Go Up - Richard_Mills
6.Dow Stock Market Trend Forecast 2018 - Video - Nadeem_Walayat
7.Jim Rogers on Gold, Silver, Bitcoin and Blockchain’s “Spectacular Future” - GoldCore
8.More Signs That the Stock Market Will Rally Until 2019 - Troy_Bombardia
9.It's Time for A New Economic Strategy in Turkey - Steve_H_Hanke
10.Fiat Currency Inflation, And Collapse Insurance - Raymond_Matison
Last 7 days
Gold Price Seasonal Trend Analysis - Video - 20th Sep 18
The Stealth Reason Why the Stock Market Keeps On Rising - 20th Sep 18
Sheffield School Applications Crisis Eased by New Secondary Schools Places - 20th Sep 18
Precious Metals Sector: It’s 2013 All Over Again - 19th Sep 18
US Dollar Head & Shoulders Triggered. What's Next? - 19th Sep 18
Prepare for the Stock Market’s Volatility to Increase - 19th Sep 18
The Beginning of the End of the Dollar - 19th Sep 18
Land Rover Discovery Sport 'Approved Used' Bad Paint Job - Inchcape Chester - 19th Sep 18
Are Technology and FANG Stocks Bottoming? - 18th Sep 18
Predictive Trading Model Suggests Falling Stock Prices During US Elections - 18th Sep 18
Lehman Brothers Financial Collapse - Ten Years Later - 18th Sep 18
Financial Crisis Markets Reality Check Now in Progress - 18th Sep 18
Gold’s Ultimate Confirmation - 18th Sep 18
Omanization: a 20-year Process to Fight Volatile Oil Prices  - 18th Sep 18
Sheffield Best Secondary Schools Rankings and Trend Trajectory for Applications 2018 - 18th Sep 18
Gold / US Dollar Inverse Correlation - 17th Sep 18
The Apple Story - Trump Tariffs Penalize US Multinationals - 17th Sep 18
Wall Street Created Financial Crash Catastrophe Ten Years Later - 17th Sep 18
Trade Wars Are Going To Crash This Stock Market - 17th Sep 18
Why Is Apple Giving This Tiny Stock A $900 Million Opportunity? - 17th Sep 18
Financial Markets Macro/Micro View: Waves and Cycles - 17th Sep 18
Stock Market Bulls Prevail – for Now! - 17th Sep 18
GBPUSD Set to Explode Higher - 17th Sep 18
The China Threat - Global Crisis Hot Spots & Pressure Points - 17th Sep 18 - Jim_Willie_CB
Silver's Relationship with Gold Reaching Historical Extremes - 16th Sep 18
Emerging Markets to Follow and Those to Avoid - 16th Sep 18
Investing - Look at the Facts to Find the Truth - 16th Sep 18
Gold Stocks Forced Capitulation - 15th Sep 18
Hindenburg Omen & Consumer Confidence: More Signs of Stock Market Trouble in 2019 - 15th Sep 18
Trading The Global Future - Bad Consequences - 15th Sep 18
Central Banks Have Gone Rogue, Putting Us All at Risk - 15th Sep 18
Gold Price Seasonal Trend Analysis - 14th Sep 18
Growing Number of Small Businesses Opening – and Closing – In the UK - 14th Sep 18
Gold Price Trend Analysis - Video - 14th Sep 18
Esports Is Exploding—Here’s 3 Best Stocks to Profit From - 13th Sep 18
The Four Steel Men Behind Trump’s Trade War - 13th Sep 18
How Trump Tariffs Could Double America’s Trade Losses - 13th Sep 18
Next Financial Crisis Is Already Here! John Lewis 99% Profits CRASH - Retail Sector Collapse - 13th Sep 18
Trading Cryptocurrencies: To Win, You Must Know Where You're Wrong - 13th Sep 18
Gold, Silver, and USD Index - Three Important “Nothings” - 13th Sep 18
Precious Metals Sector On a Long-term SELL Signal - 13th Sep 18
Does Gambling Regulation Work - A Case Study - 13th Sep 18
The Ritual Burial of the US Constitution - 12th Sep 18
Stock Market Final Probe Higher ... Then the PANIC! - 12th Sep 18
Gold Nuggets And Silver Bullets - 12th Sep 18
Bitcoin Trading - SEC Strikes Again - 12th Sep 18

Market Oracle FREE Newsletter

Trading Any Market

The Cause of Extreme Weather Events

Commodities / Climate Change Dec 08, 2012 - 07:28 AM GMT

By: Richard_Mills

Commodities

Over the last few months we have been witness to many extreme weather events - heat waves, Europe suffering from a severe cold snap, the worst in twenty five years, extreme flooding in Australia, Brazil and China, to drought in the U.S. Many say the cause is global warming, and lay the blame squarely on greenhouse gas emissions caused by human activity.

Are we, and our activities at fault? What can we look forward to if/as the earth continues to warm?


Cause

The Earth's climate has been continuously changing throughout its history. From ice covering large amounts of the globe to interglacial periods where there was ice only at the poles - our climate and biosphere has been in flux for millennia.

Last Glacial Maximum

geocraft.com

This temporary reprieve from the ice we are now experiencing is called an interglacial period - the respite from the cold locker began 18,000 years ago as the earth started heating up and warming its way out of the Pleistocene Ice Age.

geocraft.com

Approximately every 100,000 years or so our climate warms up temporarily.

Change in Temperature

These interglacial periods usually last somewhere between 15,000 to 20,000 years before another ice age starts. Presently we're at year 18,000 of the current warm spell.

Serbian astrophysicist Milutin Milankovitch is best known for developing one of the most significant theories relating to Earths motions and long term climate change.

Milankovitch developed a mathematical theory of climate change based on the seasonal and latitudinal variations in the solar radiation received by the Earth from our Sun - it was the first truly plausible theory for how minor shifts of sunlight could make the entire planet's temperature swing back and forth from cold to warm.

Milankovitch's Theory states that as the Earth travels through space around the sun, cyclical variations in three elements of Earth/sun/geometry combine to produce variations in the amount of solar energy that reaches us. These three elements are:

  • Variations in the Earth's orbital eccentricity - the shape of the orbit around the sun, a 100,000 year cycle
  • Changes in obliquity or tilt of the earth's axis - changes in the angle that Earth's axis makes with the plane of Earth's orbit, a 41,000 year cycle
  • Precession - the change in the direction of the Earth's axis of rotation, a 19,000 to 23,000 year cycle

These orbital processes are thought to be the most significant drivers of ice ages and, when combined, are known as Milankovitch Cycles.

Other Climate Change Drivers:

  • Changes occurring within the sun affects the intensity of sunlight that reaches the Earth's surface. These changes in intensity can cause either warming - stronger solar intensity - or cooling when solar intensity is weaker.
  • Volcanoes often affect our climate by emitting aerosols and carbon dioxide into the atmosphere. Aerosols block sunlight and contribute to short term cooling, but do not stay in the atmosphere long enough to produce long term change. Carbon dioxide (CO2) has a warming effect. For about two-thirds of the last 400 million years, geologic evidence suggests CO2 levels and temperatures were considerably higher than present. Each year 186 billion tons of carbon from CO2 enters the earth's atmosphere - six billion tons are from human activity, approximately 90 billion tons come from biologic activity in earth's oceans and another 90 billion tons from such sources as volcanoes and decaying land plants

These climate change "drivers" often trigger additional changes or "feedbacks" within the climate system that can amplify or dampen the climate's initial response to them:

  • The heating or cooling of the Earth's surface can cause changes in greenhouse gas concentrations - when global temperatures become warmer, CO2 is released from the oceans and when temperatures become cooler, CO2 enters the ocean and contributes to additional cooling. During at least the last 650,000 years, CO2 levels have tracked the glacial cycles - during warm interglacial periods, CO2 levels have been high and during cool glacial periods, CO2 levels have been low
  • The heating or cooling of the Earth's surface can cause changes in ocean currents. Ocean currents play a significant role in distributing heat around the Earth so changes in these currents can bring about significant changes in climate from region to region

In 1985 the Russian Vostok Antarctic drill team pulled up cores of ice that stretched through a complete glacial cycle. During the cold period of the cycle CO2 levels were much lower than during the warm periods before and after. When plotted on a chart the curves of CO2 levels and temperature tracked one another very closely - methane, an even more potent greenhouse gas, showed a similar rise and fall to that of CO2.

Temperature Anomaly

Small rises or falls in temperature - more, or less sunlight - seemed to cause a rise, or fall, in gas levels. Changing atmospheric CO2 and methane levels physically linked the Northern and Southern hemispheres, warming or cooling the planet as a whole. In the 1980s the consensus was that Milankovitch's Cycles would bring a steady cooling over the next few thousand years.

As studies of past ice ages continued and climate models were improved worries about a near term re-entry into the cold locker died away - the models now said the next ice age would not come within the next ten thousand years.

Effect

It's obvious that the orbital changes, as explained by Milankovitch's Theory, initiate a powerful feedback loop. The close of a glacial era comes when a shift in sunlight causes a slight rise in temperature - this raises gas levels over the next few hundred years and the resultant greenhouse effect drives the planet's temperature higher, which drives a further rise in the gas and water vapor levels and so on.

The earth will continue to warm, polar ice caps will melt, so will the Greenland ice sheet and most glaciers. More sunlight will be absorbed by the Earth's oceans, causing increased evaporation. Water vapor is a greenhouse gas and amplifies twofold the effects of other greenhouse gases. With Earth's ice gone there will be significantly less sunlight reflected back into space, vast expanses of Arctic tundra will thaw releasing unbelievable amounts of methane, a greenhouse gas twenty times more potent then CO2.

New Weather Patterns next century

By the end of this century scientists expect our weather to have changed substantially. Because of increased average global temperatures the tropical rain belt will have widened considerably and the subtropical dry zones will have pushed pole-ward, crawling deep into regions such as the American Southwest and southern Australia, which will be increasingly susceptible to prolonged and intense droughts.

The polar jet stream has already been altered, wide swinging north-south deviations (meanders) have become the norm - deviating far from its normal path and meandering north into Canada, the jet stream brings warm air while dipping far south over Europe, the polar jet stream brings record cold and snow.

Ocean currents will be altered, further impacting our climate, and sea levels will rise. Freshwater aquifers will suffer from saltwater intrusion, once habitable zones will become uninhabitable,

As the meanders meander extreme weather follows

Conclusion

According to science the world is going to continue to get warmer, cyclical variations in three elements of earth/sun/geometry combined to produce more sunlight reaching the earth. Increased sunlight caused a slight rise in temperature - greenhouse gas levels rose and the resultant greenhouse effect is driving the planet's temperature higher, which drives a further rise in gas levels and so on.

A report by the Intergovernmental Panel on Climate Change (IPCC) concluded that climate change will amplify extreme heat, heavy precipitation, and the highest wind speeds of tropical storms. Extreme weather events are going to happen with increasing frequency, the climate for the area you live in is going to change, regardless of what you/we do. We are all watching and experiencing the events and changes in real time.

We should be talking, we should be discussing how best to prepare ourselves, we should not be wasting resources fighting a battle - greenhouse gas reduction - we can't win. Preparation for the changes we know are coming should be on all our radar screens. Is preparation on your radar screen?

If not, maybe they should be.

By Richard (Rick) Mills

www.aheadoftheherd.com

rick@aheadoftheherd.com

If you're interested in learning more about the junior resource and bio-med sectors please come and visit us at www.aheadoftheherd.com
Site membership is free. No credit card or personal information is asked for.

Richard is host of Aheadoftheherd.com and invests in the junior resource sector.
His articles have been published on over 400 websites, including: Wall Street Journal, Market Oracle, SafeHaven , USAToday, National Post, Stockhouse, Lewrockwell, Pinnacledigest, Uranium Miner, Beforeitsnews, SeekingAlpha, MontrealGazette, Casey Research, 24hgold, Vancouver Sun, CBSnews, SilverBearCafe, Infomine, Huffington Post, Mineweb, 321Gold, Kitco, Gold-Eagle, The Gold/Energy Reports, Calgary Herald, Resource Investor, Mining.com, Forbes, FNArena, Uraniumseek, Financial Sense, Goldseek, Dallasnews, Vantagewire, Resourceclips and the Association of Mining Analysts.

Copyright © 2012 Richard (Rick) Mills - All Rights Reserved

Legal Notice / Disclaimer: This document is not and should not be construed as an offer to sell or the solicitation of an offer to purchase or subscribe for any investment. Richard Mills has based this document on information obtained from sources he believes to be reliable but which has not been independently verified; Richard Mills makes no guarantee, representation or warranty and accepts no responsibility or liability as to its accuracy or completeness. Expressions of opinion are those of Richard Mills only and are subject to change without notice. Richard Mills assumes no warranty, liability or guarantee for the current relevance, correctness or completeness of any information provided within this Report and will not be held liable for the consequence of reliance upon any opinion or statement contained herein or any omission. Furthermore, I, Richard Mills, assume no liability for any direct or indirect loss or damage or, in particular, for lost profit, which you may incur as a result of the use and existence of the information provided within this Report.

Richard (Rick) Mills Archive

© 2005-2018 http://www.MarketOracle.co.uk - The Market Oracle is a FREE Daily Financial Markets Analysis & Forecasting online publication.


Post Comment

Only logged in users are allowed to post comments. Register/ Log in

6 Critical Money Making Rules