Do not dance much do you?
This is not so important as it is realistic, there were increases in Solar output in that period.
That period being "Thus the 1907–1957"
you fail to comprehend what I, or the paper was saying!
You kind of have to read the paper, and not just the abstract!
and,
and again,
No, the point was simply secondary to the paper, but pointed out because they were focusing on the anthropogenic contributions in the latter part of the 20th century.
Sorry, but your science is outdated.
A new paper (Scafetta et al., 2019) also finds the global temperature record aligns well with trends in TSI when using the observation-based ACRIM satellite data rather than the model-based (and IPCC-preferred) PMOD data for trends in recent decades.
Image Source: Scafetta et al., 2019
“By adjusting the TSI proxy models to agree with the data patterns before and after the ACRIM-gap, we found that these models miss a slowly varying TSI component. The adjusted models suggest that the quiet solar luminosity increased from the 1986 to the 1996 TSI minimum by about 0.45 W/m² reaching a peak near 2000 and decreased by about 0.15 W/m² from the 1996 to the 2008 TSI cycle minimum. This pattern is found to be compatible with the ACRIM TSI composite and confirms the ACRIM TSI increasing trend from 1980 to 2000, followed by a long-term decreasing trend since.”
“This model was extended using the ACRIM composite since 1981 and an average between VIRGO and SORCE TIM since 2013. This particular TSI model appeared to correlate well with the Earth’s global surface temperature records since 1700 [Hoyt et al., 1993, . … The TSI data from 1978 to 1981 appeared too corrupted because of uncorrected degradation of theNimbus7/ERB sensors during the solar maximum of cycle 21. For this reason, it was more appropriate to dismiss the data from this period because modifying TSI data using proxy models, as done by PMOD, would be arbitrary. We proposed that any reliable TSI composite should begin from late 1980 with the ACRIM1 record.”
“The same harmonic solar model suggests that the sun may now be heading toward a new grand solar minimum in the 2030–2040 time frame. Final evidence that TSI may have increased from 1980 to 2000 comes from Earth’s climate studies. Secular climate records correlate well with TSI curves such as the one depicted in Figure 13 and on longer ones covering the entire Holocene [1,23,60,64]. In particular, the warming observed from 1970 to 2000, followed by a temperature standstill since 2000, is a good fit for a natural 60-year cycle prediction superimposed to other contributions [20]. This pattern correlates better with a TSI evolution similar to the ACRIM composite [17–21,62,65] than with the CMIP5 general circulation climate model predictions of continuous anthropogenic warming [22]. The CMIP5 climate models use a high climate sensitivity to CO2 forcing and low secular TSI variability proxy models, such as the one proposed in [3], which was calibrated using the PMOD TSI composite model after 1980.”
And of course:
[h=2]Solar Debunking Arguments are Defunct[/h]
An oldie but a goodie:
Carbon Dioxide or Solar Forcing?
[FONT="]Using historic variations in climate and the cosmic ray flux, one can actually [/FONT][URL="http://www.sciencebits.com/OnClimateSensitivity%20"]quantify empirically[/URL][FONT="] the relation between cosmic ray flux variations and global temperature change, and estimate the solar contribution to the 20[/FONT][FONT="]th[/FONT][FONT="] century warming. This contribution comes out to be 0.5±0.2°C out of the observed 0.6±0.2°C global warming (Shaviv, 2005).[/FONT][FONT="]Fig. 5: Solar activity over the past several centuries can be reconstructed using different proxies. These reconstructions demonstrate that 20th century activity is unparalleled over the past 600 years (previously high solar activity took place around 1000 years ago, and 8000 yrs ago). Specifically, we see sunspots and 10Be. The latter is formed in the atmosphere by ~1GeV cosmic rays, which are modulated by the solar wind (stronger solar wind → less galactic cosmic rays → less 10Be production). Note that both proxies do not capture the decrease in the high energy cosmic rays that took place since the 1970's, but which the ion chamber data does (see fig. 6). (image source: Wikipedia)
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[FONT="]Fig. 6: The flux of cosmic rays reaching Earth, as measured by ion chambers. Red line - annual averages, Blue line - 11 yr moving average. Note that ion chambers are sensitive to particles at relatively high energy (several 10's of GeV, which is higher than the energies responsible for the atmospheric ionization [~10 GeV], and much higher than the energies responsible for the 10Be production [~1 GeV]). Plot redrawn using data from Ahluwalia (1997). Moreover, the decrease in high energy cosmic rays since the 1970's is less pronounced in low energy proxies of solar activity, implying that cosmogenic isotopes (such as 10Be) or direct solar activity proxies (e.g., sun spots, aa index, etc) are less accurate in quantifying the solar → cosmic ray → climate link and its contribution to 20th century global warming.
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