Britain faces FREEZING winters as slump in solar activity threatens ‘little Ice Age’
http://www.express.co.uk/news/nature/586404/Britain-freezing-winters-slump-solar-activity
Climate experts warn the amount of light and warmth released by the sun is nosediving to levels “not seen for centuries”.
They fear a repeat of the so-called ‘Maunder Minimum’ which triggered Arctic winter whiteouts and led to the River Thames freezing 300 years ago.
The Met Office-led study warns although the effect will be offset by recent global warming, Britain faces years of unusually cold winters.
A spokesman said: “A return to low solar activity not seen for centuries could increase the chances of cold winters in Europe and eastern parts of the United States but wouldn’t halt global warming.
“Return of ‘grand solar minimum’ could affect European and eastern US winters.”…
Scientist: The Tide Is Turning, Time For Global Cooling
The old climate change dogma was that solar irradiance only varied by a miniscule amount, roughly 0.1% as measured over the normal 11 year solar cycle. This has caused many scientists to dismiss changes in the Sun’s output as unimportant to climate change here on Earth. But new research is proving this assumption to be shaky at best. In a long online post by NASA in 2013, a good overview of current research into the solar-climate link is presented.
As the online report states: “Of particular importance is the sun’s extreme ultraviolet (EUV) radiation, which peaks during the years around solar maximum. Within the relatively narrow band of EUV wavelengths, the sun’s output varies not by a minuscule 0.1%, but by whopping factors of 10 or more. This can strongly affect the chemistry and thermal structure of the upper atmosphere.”
The full report, “The Effects of Solar Variability on Earth’s Climate,” is available from the National Academies Press. This research and more are causing the tide to turn with regard to climate change and the importance of our local star.…
New paper finds another solar amplification mechanism by which the Sun controls climate – Published in Environmental Research Letters
New paper finds another solar amplification mechanism by which the Sun controls climate
http://hockeyschtick.blogspot.com/2015/05/new-paper-finds-another-solar.html
A paper published today in Environmental Research Letters finds another potential solar amplification mechanism by which changes in solar UV activity over 11-year solar cycles are amplified to large-scale effects upon climate via modulations of the North Atlantic Oscillation [NAO]. The authors model a mechanism whereby large changes (up to 100%) in solar UV over solar cycles affect heating rates of the upper stratosphere, which in turn affect winds and temperature gradients in the troposphere, and heat storage in North Atlantic Ocean. This results in a lagged effect of 3-4 years in the amplitude of the North Atlantic Oscillation, which in turn affects Arctic sea ice extent, other ocean oscillations, the jet stream, and weather patterns around the globe. The paper corroborates several others demonstrating solar influence upon the NAO, as well as other ocean oscillations. According to the authors, Numerous studies have suggested an impact of the 11 year solar cycle on the winter North Atlantic Oscillation (NAO), with an increased tendency for positive [NAO signals to occur at maxima of the solar cycle, and negative NAO signals to occur at minima of the solar cycle]. Climate models have successfully reproduced this solar cycle modulation of the NAO, although the magnitude of the effect is often considerably weaker than implied by observations. A leading candidate for the mechanism of solar influence is via the impact of ultraviolet radiation variability on heating rates in the tropical upper stratosphere, and consequently on the meridional temperature gradient and zonal winds…On reaching the troposphere this produces a response similar to the winter NAO. Recent analyses of observations have shown that solar cycle–NAO link becomes clearer approximately three years after solar maximum and minimum. Previous modelling studies have been unable to reproduce a lagged response of the observed magnitude. In this study, the impact of solar cycle on the NAO is investigated using an atmosphere–ocean coupled climate model. We show that the model produces significant NAO responses peaking several years after extrema of the solar cycle, persisting even when the solar forcing becomes neutral. This confirms suggestions of a further component to the solar influence on the NAO beyond direct atmospheric heating and its dynamical response. Analysis of simulated upper ocean temperature anomalies confirms that the North Atlantic Ocean provides the memory of the solar forcing required to produce the …
Israeli Astrophysicist Dr. Nir Shaviv to explain How the Sun Drives Climate Change
…Mean Cosmic Radiation Over Past 8 Years Highest Since 1958 …Current Solar Cycle Weakest In Almost Two Centuries!
Mean Cosmic Radiation Over Past 8 Years Highest Since 1958 …Current Solar Cycle Weakest In Almost Two Centuries!
The Sun in April By Frank Bosse and Prof. Fritz Vahrenholt [Translated, edited by P Gosselin] The sole real source of energy for our planet also was also below normal in April: The sunspot number (SSN) was 54.4. Taking the average of the previous 23 cycles, that is only 70% of what is average for this month into the cycle. Compared to March activity rose some 46%. These short-term changes however are usual noise in the overall signal, which says the entire activity since the current cycle began has been only 53% of the mean value since 1750. Figure 1: Current solar cycle 24 (red), the mean solar cycle (blue) and the similar solar cycle no. 7, which took place from 1823 to 1833 and was the last in the Dalton Minimum. The comparison with solar cycle no. 7 could see increasingly large deviations in the months ahead, as solar activity increased markedly, as depicted by sharp peaks of the black line in Figure 1. Such a development appears highly improbable for solar cycle no. 24. What follows is a comparison of all cycles: Figure 2: The accumulated solar cycle sunspot anomaly for all cycles 77 months into the cycle. The current cycle began in December 2008. Figure 3: The speed of the solar wind, which impacts the Earth’s upper atmospheric layers, has fallen off since the early 1990s. It is expressed as the geomagnetic Ap Index. It is a measure of the sun’s impact on the Earth’s magnetic field. Source of the image: Climate4you. Not only the Earth is impacted by the solar winds, but also the entire sun’s surroundings far out in space. The heliosphere reacts to the stream of particles from the sun. When it is weaker – as is the case during times of solar minima – more cosmic radiation from the Milky Way can penetrate into the Earth’s atmosphere. This is measured here on Earth, e.g. in Moscow since 1958: Figure 4: Changes in cosmic radiation During the solar sunspot number maxima (compared to 2000) the solar wind is stronger and thus reduces cosmic radiation by up to 20% when compared to the minima in activity. The current cycle (maximum is already over) is bringing only about an 8% reduction. Over the entire period since 2006 …
Celebrate the warmth: ‘We should spend Earth Hour giving thanks for warmth’
http://www.americanthinker.com/blog/2015/03/celebrate_the_warmth.html…
Israeli Astrophysicist Dr. Nir Shaviv: ‘Solar Activity Responsible For About Half Of 20th Century Global Warming’
Study: Earth’s Orbit Causes Global Warming Today And Climate Change 1.4 Billion Years Ago
‘The sun has gone quiet again during the weakest solar cycle in more than a century’
The Australian Academy of Science quotes ‘unusually weak solar activity’ as one reason for the post 2001 temperature slowdown
The Australian Academy of Science quotes “unusually weak solar activity” as one reason for the post 2001 temperature slowdown
http://www.warwickhughes.com/blog/?p=3599
Download the 7MB pdf report – page 10 Box 2.2 for the amazing quote saying […unusually weak solar activity] is a cooling influence. That they have the hide to include that in the face of decades of the IPCC refusing to accept the sun was affecting changes in earths temperature. They also say [None of these influences is likely to continue over the long term.] Talk about messy statements – so solar – aerosols – volcanoes are all short term. I like the quotes in Box 2.1 – where they pontificate about measuring “climate variables” – They say – (with careful account for changes in instrument types, observational practices, instrument locations and urban areas) It could be re-written along lines – with careful account for changes in instrument types, observational practices, instrument locations and taking care to include in global temperature compilations artificially warmed data from every urban area on the planet.
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