A dimming of the Sun to match conditions in the 'Little Ice Age' of the 17th century would only slightly slow global warming, according to new research.
The study, which appears in the journal Geophysical Research Letters, reveals a weakening of solar activity in recent years, linked to fewer sunspots, would cut at most 0.3°C from a projected rise in temperatures by 2100 if it becomes a long-lasting 'Grand Minimum' of brightness.
"The notion that we are heading for a new Little Ice Age if the Sun actually entered a Grand Minimum is wrong," says study lead author Dr Georg Feulner of the Potsdam Institute for Climate Impact Research.
World temperatures are likely to rise by between 3.7°C and 4.5°C by 2100 if greenhouse gas emissions keep building up - far more than the impact of known shifts in solar output, the study shows.
The Sun has gone through four Grand Minima since the 13th century, including the Maunder Minimum from 1645-1715 that overlapped with the Little Ice Age. The Thames River froze in London, for instance, during a 'Great Frost' of 1683-84.
World temperatures have risen 0.7°C since the Industrial Revolution led to increasing use of fossil fuels that release greenhouse gases when burnt, according to the UN panel of climate scientists.
Click source for more denial regarding the solar output of the Sun, on one hand this report confirms the cooling period with a calm sun but then goes on to say that the power of "Man Made Climate Change" is stronger! You Could Not Make It Up!!!!!!