[muawiyah]

There’ve been 20 periods of glacial advance ~ we are about 5,000 years overdue for the 21st period.

[FlingWingFlyer]

Bookmarked the website. Looks like a good source. Thanks for this post.

[G Larry]

“scientists” understand solar cycles very well.
It’s the climate whores* parading as scientists who distort the facts.
* Climate whore:
An individual or group who accepts money in return for supporting or promoting the global warming fraud in spite of the scientific data.

[Bhoy]

Good site. Thanks.

So what’s the list of stuff affecting earth’s climate?

sunspots
ocean temperatures
tilt of earth & orbit

[American Constitutionalist]

Perhaps the Earth’s wobble could be what is effecting our climate ? I wonder if the Meanie Greenies ever thought about that ?

[CPT Clay]

good question

[13Sisters76]

It really doesn’t matter what they know or, even, how smart they are. All that matters is the agenda. It transcends any actual truth about climate.

[pwatson]

The radiation from our sun is the ultimate source of energy and warmth on earth. Our atmosphere and the earth’s surface is continually bombarded by a wide range of electromagnetic radiation, protons, electrons and cosmic rays, which emanate largely from our sun but also from outer space. The intensity of this radiation varies with sun spot activity which are enormous electromagnetic storm regions that are observed to develop periodically on the surface of the sun.

Historical observation of sun spot activity has shown it to be roughly cyclical in nature, time wise. The interval between maxima is about 11 years and for the big solar cycle of 100 years there are 9 individual 11 year cycles.

The nucleation of clouds from water vapor is thought to be caused by cosmic rays which impinge on the earth from outer space. When sun spot activity is high the increased magnetic field of the sun deflects the cosmic rays from the earth thus causing a lower tendency for cloud formation. Also the greater the UV radiation from the sun results in evaporation of the high altitude ice particles and the cloud cover disappears. In general, periods of high sunspot activity are related to global warming and periods of low sun spot activity with global cooling. http://solarcycle25.com/index.php?tid=13

[okie01]

Actually, there was a guy from my hometown who studied climatology where we both went to college -- and who posed the theory that earth's orbit affected climate. He wrote his master's thesis on the topic.

In 1961.

[ApplegateRanch]

*PING!* link to full, original article rather than to the excerpt in the blog link in the original post.

[Publius6961]

How Well Do Scientists Understand How Changes in Earth's Orbit Affect Natural Climate Trends?

On a scale of 1 to 100?
About a 5.

Very few real scientists are engaged in that research.

[SunkenCiv]

• Research challenges models of sea level change during ice-age cycles

[wendy1946]

Sorry, I'd have to register no-sale on this one.

Real ice ages corresponded to real changes in the solar system with cosmic causes and the "little" ice ages including the one which began around the mid 1300s and the one we seem to be entering now correspond to simple fluctuations in the sun's output. I don't see any way to extrapolate the Earth's present orbit backwards and get any sort of an ice age from that process alone.