Holocene Context for Catastrophic Anthropogenic Global Warming

Sierra Foothill Commentary

ICE Core Data Signals Long Term Global Cooling

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Summary

Our current beneficial, warm Holocene interglacial has been the enabler of mankind’s civilization for the last 10,000 years. The congenial climate of the Holocene epoch spans from mankind’s earliest farming to the scientific and technological advances of the last 100 years.

However all the Northern Hemisphere Ice Core records from Greenland show:

• the last millennium 1000AD – 2000AD has been the coldest millennium of the entire Holocene interglacial.

• each of the notable high points in the Holocene temperature record, (Holocene Climate Optimum – Minoan – Roman – Medieval – Modern), have been progressively colder than the previous high point.

• for its first 7-8000 years the early Holocene, including its high point “climate optimum”, had virtually flat temperatures, an average drop of only ~0.007 °C per millennium.

• but the more recent Holocene, since a “tipping point” at ~1000BC…

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