NASA: The chill of solar minimum is being felt in our atmosphere – cooling trend seen

By Dr. Tony Phillips (Reprinted with permission of Spaceweather.com) Sept. 27, 2018: The sun is entering one of the deepest Solar Minima of the Space Age. Sunspots have been absent for most of 2018, and the sun’s ultraviolet output has sharply dropped. New research shows that Earth’s upper atmosphere is responding. “We see a cooling trend,”…

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Evidence the Sun may have turned “blue” during 1450s-1460s

A lecture by Dr. Willie Soon suggests that something odd was occurring with the view of the sun in the decades around 1450-1460, which he dubs the “Global Blue Sun” due to historical anecdotal evidence that has been recorded. The suggestion is that there was a massive volcanic eruption somewhere on Earth that put haze and…

How constant is the “solar constant?”

By Andy May The IPCC lowered their estimate of the impact of solar variability on the Earth’s climate from the already low value of 0.12 W/m2 (Watts per square-meter) given in their fourth report (AR4), to a still lower value of 0.05 W/m2 in the 2013 fifth report (AR5), the new value is illustrated in Figure 1.…

Was Extreme Ultraviolet an Andy Warhol Actress?

Guest Post by Willis Eschenbach When folks tell me that the sunspot-related changes in total solar irradiance make changes down here on the surface of our amazing planet, I suggest that they take a look at the numbers. From peak to trough over the sunspot cycle, the top-of-atmosphere total solar irradiance varies by about 1.2…

What’s Absorbing The Sun?

Guest Post by Willis Eschenbach In considering how the energy flows around the planet, I got to thinking about the amount of solar energy that is absorbed rather than transmitted by the atmosphere and the clouds. As with many other such questions, I turned to the wonderful CERES satellite data. Figure 1 shows what CERES…

What is warming the Earth?

Guest Post By Javier A no-assumptions look at the global warming evidence helps clarify the possibilities. The planet’s surface has been warming since the depths of the Little Ice Age, and particularly since ~ 1850 AD. The surface temperature record, however incomplete or uncertain, reflects this warming. Hypotheses about why the warming is taking place…

The Tale Told by the Heliospheric Tilt Angle

Guest essay by David Archibald Some of the ancients worshipped the Sun as the source of all life. It is much the same today. Most of the energy we use as a civilisation is fossilised solar energy, conveniently provided by Nature as solids and liquids and gasses – whtatever you want. Only the little bit…