Global Climate Change and natural warming cycles

Excerpts

Singer, who holds PhD in Physics from Princeton University, was a Special adviser to President Eisenhower on space developments, a professor of Environmental Sciences at the University of Virginia, and co-author of Unstoppable Global Warming: Every 1,500 Years.

In this New York Times bestseller, authors Singer and co-author Avery present the compelling concept that global temperatures have been rising mostly or entirely because of a natural cycle. Using historic data from two millennia of recorded history combined with natural physical records, they argue that the 1,500 year natural sunspot magnetic waves cycle that has always controlled the earth's climate remains the driving force in the current warming trend. Man created carbon dioxide has very little effect on the earth's climate.

Since the 1,500 year cycle was discovered in the early 1980's it's general characteristics have been confirmed by measurements in: tree rings (living, preserved and fossilized), pollen, coral, glaciers, boreholes, stalagmites, tree lines, and sea sediments. The most recent cycles have been recorded in human history with forced migrations, starvation, and disease during the cold portion of the cycle and greater population, expanded farm land, greater crop variety, and extra building during the warm portion.

The causes of the 1,500 year cycle are not well understood although 600 of them have been identified in the last million years.

Commentary

Singer is in typical partisan science mode when he believes the 1500 year cycle is responsible for the current global climate change. Even if the 1500 year cycle is contributing to global warming, there is no reason to exclude human activity from consideration. For all we know (and we don't know much about the mechanism of the 1500 year cycle), human activity is hitting this natural cycle like a hammer at the resonance frequency and the earth is responding with wild oscillations.

News Source: DailyGalaxy.com