by Harry Pettit, February 2, 2020 in TheSun
Earth is bracing for a solar minimum: a quiet period in which the Sun fires less energy – or, heat – at our planet than usual.
According to Nasa, the Sun will reach its lowest activity in over 200 years in 2020.
This could cause average temperatures to drop as much as 1C in a cold spell lasting 12 months, according to Northumbria University expert Valentina Zharkova.
That might not sound like much, but a whole degree is very significant for global average temperatures.
However, Professor Zharkova warned icy spells and wet summers could persist until solar activity picks up again in 2053.
She listed recent unusual chills in Canada and Iceland as evidence of the Grand Solar Minimum (GSM) already taking hold.
“The reduction in temperature will results in cold weathers on Earth, wet and cold summers, cold and wet winters,” she told The Sun.
“We will possibly get big frosts as is happening now in Canada where they see [temperatures] of -50C.
by F. Bosse & Prof. F. Vahrenholt, December 27, 2018 in ClimateChangeDispatch
The sun was much less active in November than normal, comparing all solar cycles 1-23 up to month no. 120 since the beginning of the systematic survey in 1755, the first year of solar cycle 1.
The latest observed SSN (sunspot number) was a meager 5.9 for the monthly average.
On 16 days the sun was completely “spotless.” The maximum number over the days of November was 15, which does not mean that there were 15 spots – no, the number indicates that 5 spots were observed in a maximum of 1 spot group.
So there was very low spot activity, only 20% of the average value.
by K. Richard, December 27, 2018 in NoTricksZone
When it comes to the Sun’s influence on climate, one conclusion is certain: there is no widespread scientific agreement as to how and to what extent solar activity and its related parameters (i.e., galactic cosmic rays, geomagnetic activity, solar wind flux) impact changes in the Earth’s temperature and precipitation.
The disagreement is so chasmic and the mechanisms are so poorly understood that scientists’ estimates of the influence of direct solar irradiance forcing between the 17th century and today can range between a negligible +0.1 W m-2 to a very robust +6 W m-2 (Egorova et al., 2018; Mazzarella and Scafetta, 2018).
“There is no consensus on the amplitude of the historical solar forcing. The estimated magnitude of the total solar irradiance difference between Maunder minimum and present time ranges from 0.1 to 6 W/m2 making uncertain the simulation of the past and future climate.” (Egorova et al., 2018)
by J. Haskins & H.S. Burnett, October 23, 2018 in ClimateChangeDispatch
In a world riddled with climate-change doomsday predictions, a small but growing number of scientists are saying the highly touted climate models predicting steadily increasing global temperature due to humans’ carbon-dioxide emissions are wrong and that Earth could soon face something even direr: global cooling.
One such climate scientist is Valentina Zharkova, an astrophysicist at Northumbria University in the United Kingdom.
Zharkova and her team of researchers say that based on mathematical models of the Sun’s magnetic activity, it’s likely Earth will experience decreasing magnetic waves over a 33-year period beginning in 2021.
Zharkova is not alone.