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by iaw 4715 days ago
That is a true statement on a 150 year timescale (or possibly even a millennial timescale) but on a geologic timescale it is very false. Also, it is misleading to attribute this deviation solely to the activities of man when solar output has been on the rise for nearly two centuries (http://en.wikipedia.org/wiki/File:Solar_Activity_Proxies.png)