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31/12/16
16:11
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Originally posted by bourse
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Climate change is occurring - that is undisputed.
The cause is debatable but the impact of increased Sun spot activity is the most plausible, and also the basis of recent published concerns of an imminent very cool period, as this sun spot activity is forecast to dramatically drop.
Note - that CO2 levels will have no impact on the inevitability of this cooling period when it eventuates.
So hence my concerns with vehement posture of many that AGW is beyond question as the ONLY explanation for climate change.
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That has already been quite thoroughly studied and variable Solar output has been estimated to account for only ~ 1/7 of recent warming. So yes there is a minor effect but it is dwarfed by the anthropogenic (man-made) forcing effect.
https://www.skepticalscience.com/solar-activity-sunspots-global-warming.htm