Here is another reason why the global warming is a hoax and why climate change is a religion!
Anthropocene greenhouse gases is an obscene explanation! What has probably more influence on climate on Earth when comparing trace gases and varying solar activity? Varying solar activity!
Let's not forget that the world population also increased tremendously over the past several centuries from about 1 billion around 1800 AD/CE to now about 9 billion (aka as the Population Bomb since 1968). Of course, so many humans and their activities largely concentrated in urban areas contribute to warming (e.g. urban heat island effect). However, world population growth might be at an inflection point.
Much more likely are variations in solar activity and solar cycles over short and long term periods that cause warming and cooling periods on Earth than trace gases in the atmosphere! We know for a long time about the 11 year solar activity cycle, but most likely there are other, yet to be discovered cycles like the grand solar cycle.
Grand solar minimums is the missing link I was looking for to possibly explain changes of extended warming to cooling climate periods.
Thanks to the incessant daily climate change demagoguery, the effect of solar activity on Earth climate is heavily suppressed, avoided and omitted!
"The Wolf Solar Minimum is a grand solar minimum—a prolonged period of sharply reduced sunspot activity and magnetic output on the Sun—that lasted roughly from 1270 to 1350." (Google Search)
This Wolf Solar Minimum roughly coincides with the end of the Medieval Warm Period from about 950 AD/CE to 1250 AD/CE (not medieval climate anomaly) or it falls between the MWP and the Little Ice Age from about 1400 AD/CE to 1850 AD/CE. Or in other words, we are currently in another, modern warm period!
"Major historical grand solar minima identified in solar physics include the following:
Homeric minimum: ~750 BC – 400 BC
Oort minimum: 1040 – 1080
Wolf minimum: 1280 – 1350
Spörer Minimum: 1450 – 1550
Maunder Minimum: 1645 – 1715
Dalton Minimum: 1790 – 1820
Modern Minimum: 2020 – 2053" (Google Search)
From the abstract (1):
"In this editorial I will demonstrate with newly discovered solar activity proxy-magnetic field that the Sun has entered into the modern Grand Solar Minimum (2020–2053) that will lead to a significant reduction of solar magnetic field and activity like during Maunder minimum leading to noticeable reduction of terrestrial temperature. ..."
From the abstract (2):
"Recent progress in undersatanding a role of the solar background magnetic field in defining solar activity is presented using eigen vectors derived with Principle Compnent Analysis.
This approach revealed a presence of not only 11 year solar cycles but also of grand solar cycles with duration of 330-380 years.
We demonstrated that these grand cycles are formed by the interferences of two magnetic waves produced by solar dynamo with dipole magnetic field in two layers of the solar interior with close but not equal frequencies.
These grand cycles are always separated by grand solar minima (GSMs) similar to Maunder minimum type, with the modern GSM started in 2020 and to last until 2053.
This GSM leads to a reduction of solar irradiance by about 0.22% from the modern level and a decrease of the average terrestrial temperature by about 1.0C in the cycle 26.
The reduction of a terrestrial temperature can have important implications for different parts of the planet on growing vegetation, agriculture, food supplies and heating needs in both Northern and Southern hemispheres."
Modern Grand Solar Minimum will lead to terrestrial cooling (1, open access)
Modern grand solar minimum and its impact on the terrestrial environment (2, open access?)
Figure 3. Solar activity (summary) curve restored for 1200–3300 AD
Figure 4.
Top plot: restored total solar irradiance from 1600 until 2014 [Notice the dip around 1812 AD. This when Napoleon tried and failed to conquer Moscow due to an extremely cold winter.]
Bottom plot: Central England temperatures (CET) recorded continuously since 1658. Blue areas are reoccurring cool periods; red areas are warm periods. All times of solar minima were coincident with cool periods in central England.
