Jovial Monk wrote on Nov 24^th, 2023 at 7:10pm:


So what were the "forcings" in previous ice ages?

Jovial Monk wrote on Nov 24^th, 2023 at 7:10pm:


But that ignores other factors. Why do you need to ignore other factors? Why do you think Milankovitch is the sole detwerminant?

Jovial Monk wrote on Nov 24^th, 2023 at 7:10pm:


And yet it does explain a lot.

"The Earth’s climate has exhibited marked "natural" changes, with time scales varying from many millions of years down to a few years. For example:

    Changes in land and ocean floor topography have had major influences on global climate at time scales of 50 million to 150 million years. (These changes influenced the patterns of absorption of incoming radiation from the sun, and affected circulation patterns in the atmosphere and oceans).
    Over the last two million years the onset and recession of the great Ice Ages were probably influenced by changes in the earth’s orbit and the tilt of its axis, which caused systematic variations in the amount and distribution of solar radiation. The difference in globally averaged temperatures between glacials (“ice ages”) and interglacials is about 5°C.
    Since the end of the last ice age (14,000–10,000 years ago) globally averaged surface temperatures have fluctuated over a range of up to 2°C on time scales of centuries or more. Factors influencing these changes probably included fluctuations in the radiation output from the sun, and changes in circulation and overturning in the oceans. These temperature variations through the Holocene (the last 10,000 years) have been small compared to those during ice ages. In fact the Holocene has probably been the longest “warm stable” period over the past 400,000 years.
    Over periods of a few years, fluctuations in global surface temperatures of a few tenths of a degree are common. Some of these are related to the El Niño–Southern Oscillation phenomenon, and major volcanic eruptions have also had some effects."

https://niwa.co.nz/our-science/climate/information-and-resources/clivar/variatio...

Jovial Monk wrote on Nov 24^th, 2023 at 7:30pm:


So natural variation is somehow excluded?

lee wrote on Nov 24^th, 2023 at 7:45pm:

Does a tree just fall down?

Nope!

A tree might fall down because:

Disease has rotted the trunk.

Someone has cut most of the way through the trunk.

A much stronger than normal wind blew the tree over.

Otherwise it would still be there, no?

But you will still be stupid and uneducated.

Run for EE Mod!

Face it, Booby the HS dropout—I am the only person with any knowledge and ability to post in this dump, the STUPIDEST MRB in OzPol!

Aussie—added 55k posts

Gordon—added 25K posts

Booby—added barely 10K posts.

Jovial Monk—added over 11K posts in HALF the time this dead board added 10K.

When it comes to melting ice, here is a nice figure to know:

The energy needed to melt 1g of ice will heat the 1g of water at 0°C to 80°C.