NOAA – 28,504 Low Max Records Set in Last 365 Days

Are we on the cusp of the next grand minimum?

sunshine hours

28,504 Low Max Records were set in last 365 days according to the NOAA.

A “Low Max” means that the maximum temperatures for the day was the lowest it has ever been.

This indicates daytime cooling.

Only 13205 High Max records were set. That is  over a 2:1 ratio. Brrr.


(h/t IceAgeNow)

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The Sun Has Gone Quiet

Details at theSI Weather, where I have selected a segment which may be of interest blog readers.

solar-stuff-gifConsequences of a weak solar cycle

First, the weak solar cycle has resulted in rather benign “space weather” in recent times with generally weaker-than-normal geomagnetic storms. By all Earth-based measures of geomagnetic and geoeffective solar activity, this cycle has been extremely quiet. However, there is some evidence that most large events such as strong solar flares and significant geomagnetic storms tend to occur in the declining phase of the solar cycle. In other words, there is still a chance for significant solar activity in the months and years ahead.

Second, it is pretty well understood that solar activity has a direct impact on temperatures at very high altitudes in a part of the Earth’s atmosphere called the thermosphere. This is the biggest layer of the Earth’s atmosphere which lies directly above the mesosphere and below the exosphere. Thermospheric temperatures increase with altitude due to absorption of highly energetic solar radiation and are highly dependent on solar activity.

Finally, if history is a guide, it is safe to say that weak solar activity for a prolonged period of time can have a negative impact on global temperatures in the troposphere which is the bottom-most layer of Earth’s atmosphere – and where we all live. There have been two notable historical periods with decades-long episodes of low solar activity. The first period is known as the “Maunder Minimum”, named after the solar astronomer Edward Maunder, and it lasted from around 1645 to 1715. The second one is referred to as the “Dalton Minimum”, named for the English meteorologist John Dalton, and it lasted from about 1790 to 1830. Both of these historical periods coincided with below-normal global temperatures in an era now referred to by many as the “Little Ice Age”. In addition, research studies in just the past couple of decades have found a complicated relationship between solar activity, cosmic rays, and clouds on Earth. This research suggests that in times of low solar activity where solar winds are typically weak; more cosmic rays reach the Earth’s atmosphere which, in turn, has been found to lead to an increase in certain types of clouds that can act to cool the Earth.

Coldest Antarctic June Ever Recorded

Next Grand Minimum’s do not just arrive complete, they creep in with setting records one year, then again and again over a generation. This maybe a stating point for the Next Grand Minimum.

Watts Up With That?

Story submitted by Eric Worrall

Antarctica continues to defy the global warming script, with a report from Meteo France, that June this year was the coldest Antarctic June ever recorded, at the French Antarctic Dumont d’Urville Station.

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A Colder Climate is a Drier Climate

Cold air brings more drought than warm air. Why do the warmest insist that warm air and droughts are our biggest danger?

Watts Up With That?

Guest essay by David Archibald

In trying to understand how the US agricultural system will respond to lower solar activity, and thus a posited colder climate, we have to go way back. As far back as the 1970s in fact when it was still possible for academics to publish books and papers on the effects of climatic cooling. In 1977, Reid Bryson and Thomas Murray published a book entitled Climates of Hunger. The book is old enough that Stephen Schneider is credited with reviewing the manuscript, from his time as a cooling alarmist. 

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Peak solar geomagnetic activity shows a ~66% decline over the past 3 solar cycles

According to solar experts, the “general consensus is that we’ve passed the peak” of the current ~11-year solar cycle. If solar geomagnetic activity has also peaked for the current solar cycle, the Ap index of geomagnetic activity declined about 66% so far at solar maxima over the past three solar cycles. The Ap index is one of many indicators of solar activity including total solar irradiance, sunspots, radio flux, and several others, and has particular relevance to the Svensmark cosmic ray theory of climate.

Solar geomagnetic activity shields galactic cosmic rays from Earth, which according to Svensmark’s theory, nucleate cloud formation. It will be interesting over the next several years to see if this decline in solar geomagnetic activity is found to increase cloud formation and potentially surface cooling.

ap index

Hat Tip to HockeySchtick

In the past, a decline in solar activity has resulted in a cooler planet. Stay Tuned!