How an Ice Age Begins

This Article by Gregory Fegel is worth a read. It does look at one of the questions pondered in the Climate Change Discussion about how the derivative of temperature over time always  inflects from positive (interglacial sequence) through 0 to negative (glacial sequence) in such a dramatic fashion .

How an Ice Age Begins – Courtesy of Gregory Fegel

From his article, this counter intuitive paragraph stands out:

“The next Ice Age will be precipitated by  quite literally  an upward trend in summer temperatures and summer warming of the oceans in the Northern Hemisphere, which will increase oceanic evaporation and cause an increase in precipitation, some of which will fall as snow that will feed the growth of glaciers at high elevations and at high latitudes.”