Here’s the first
(The Hockey Schtick) A paper published in Earth and Planetary Science Letters finds solar activity was strongly correlated to climate change over the past 200,000 years. The paper reconstructs solar geomagnetic field strength using the 10Be isotope proxy of cosmic rays, which is inversely related to solar activity. The reconstruction in Figure 2 shows solar activity at the end of the record [“near present day”]Â was at some of the highest levels of the past 200,000 years, and solar geomagnetic field intensity approximately 3 times higher than during the ice age ~180,000 years ago.
Figure 4 below shows the strong correlation between solar activity [grey and black] and the climate change proxy [d18O in red] over the past 200,000 years. According to the author, “The marine δ18O [temperature proxy] record and solar modulation are strongly correlated at the 100,000 year timescale. It is proposed that variations in solar activity control the 100,000 year glacial–interglacial cycles.”
Obviously, Warmists do not like the notion that the nuclear furnace in the sky is mostly responsible, or responsible at all, for changes in climate, so now we get this study which Warmists in the media are pimping breathlessly
(International Business Times) Variations in heat from the sun have not strongly influenced climate change, according to a new study conducted by scientists at the University of Edinburgh, which instead points the finger at volcanic activity and greenhouse gases for the planet’s ever-changing climate patterns.
The findings of the study, published in Nature GeoScience on Sunday, have overturned a widely-held scientific concept that long-lasting periods of warm and cold weather in the past might have been caused by periodic fluctuations in solar activity. The researchers examined causes of climate change in Earth’s northern hemisphere over the past 1,000 years and found that until the year 1800, the key driver of periodic changes in climate was volcanic activity.
In fact, the paper itself notes, while positioning itself as the Ultimate Proof!!!!!!!
Research examining the causes of climate change in the northern hemisphere over the past 1000 years has shown that until the year 1800, the key driver of periodic changes in climate was volcanic eruptions.
These tend to prevent sunlight reaching the Earth, causing cool, drier weather. Since 1900, greenhouse gases have been the primary cause of climate change.
A couple points: if volcanoes were the major driver over the past 1000 years, why couldn’t the same natural process be in charge now? Second, what about 1800-1900? What drove the climate to switch from the Little Ice Age to the Modern Warm Period? Third, this is all about dismissing the effects of the Sun, as Warmists have been trying to do for quite some time. Fourth, this paper seems more about Blaming Man for the Modern Warm Period, but forgets that if GHGs are the primary cause of the current warm period, why has there been no warming in 17 years?
