They can hardly blame that on modern technology used by humans today.That's very true. Speaking of which...
To all -- please ping me to other topics which are appropriate for the GGG list. Thanks.William the Conqueror's Global WarmingLloyd Keigwin, a researcher from the Woods Hole Oceanographic Institution... concluded that although sea surface temperature (SST) in the northern Saragasso Sea is now about 1 degree centigrade warmer than 400 years ago during the Little Ice Age, it is about 1 degree cooler than about 1,000 years ago during the Medieval Warm Period. Keigwin's conclusions are based on his study of sediment accumulation in the Saragasso Sea... Eleventh century society burned no gasoline. There were no electric power plants to burn coal. No chemical plants emitted volatile organic compounds (VOCs). Airplanes, reputed to emit as much of the greenhouse gases as the eighth most polluting nation, were still 900 years away from being invented.
by Steven J. Milloy
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This over-utilization of wood/timber resources contributed to the mining of coal for heat and energy..
The coal mining industry in turn fueled the need for better pumps to keep water out of the mines, which led to steam engines which powered those pumps, which led to the Industrial revolution, which led to...
Man, there are just too many connections there..