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Tag Archives: David Archibald
The curious case of rising CO2 and falling temperatures
Guest essay by Tony Brown Some readers might recall my recent article ‘The Long Slow Thaw?’ In this I reconstructed Central England temperature to 1538 from its current instrumental date of 1659. I was surprised by two notable periods of … Continue reading
Solar Update February 2013
Guest post by David Archibald Solar Cycle 24 has already seen five consecutive colder winters. This is a link to a post about a German meteorologist who has seen the light. Eventually people will work their way back to where … Continue reading
The UK Growing Season
Guest post by David Archibald Next week I am hosting a dinner party at which a Fellow of the Royal Society will be guest of honour – one of the Gang of Four who got the Society to tone down … Continue reading
When will it start cooling?
Guest post by David Archibald My papers and those of Jan-Erik Solheim et al predict a significant cooling over Solar Cycle 24 relative to Solar Cycle 23. Solheim’s model predicts that Solar Cycle 24, for the northern hemisphere, will be … Continue reading
The Sun has changed its character
Guest post by David Archibald A number of solar parameters are weak, and none is weaker than the Ap Index: Figure 1: Ap Index 1932 to 2026 Figure 1 shows the Ap Index from 1932 with a projection to the … Continue reading
Posted in Solar, Spaceweather
Tagged climate, climate change, Cloud cover, David Archibald, Institute of World Politics, Solar cycle, Solar variation, sun
176 Comments
Book Review of “Super Fuel”
Guest Post by David Archibald There is a rich tradition of rational weathermen taking an interest in the potential of thorium-based nuclear power. Witness this video made by John Coleman:
Posted in Energy, thorium power
Tagged Alvin M. Weinberg, Alvin Weinberg, China, David Archibald, Ira Flatow, John Coleman, Light water reactor, Thorium
86 Comments
A look at oil production
Saudi Production Profile Guest post by David Archibald World conventional oil production peaked in 2005 and has been on a plateau at about that level ever since. This graph suggests that the market changed from inherent over-supply to inherent tightness … Continue reading
Premonitions of the Fall (in temperature)
Guest post by David Archibald The first prediction of the current climatic minimum was made by Hubbert Lamb in 1970 in a report (Weiss and Lamb) for the German Navy. He did it by making a reconstructed record of the … Continue reading
Posted in Forecasting, Paleoclimatology, Solar
Tagged Dalton Minimum, David Archibald, Global cooling, Global warming, Maunder Minimum, sun
198 Comments
Solar Update March 2012
by David Archibald Figure 1: Heliospheric Current Sheet Tilt Angle 1976 – 2012 The heliospheric current sheet tilt angle is currently at 67°. Solar maximum occurs when it reaches 74° – so a little bit further to go.
Headlines over solar cycle 25 and potential global cooling
There’s a story about solar cycle 25, and a potential “mini ice age” in the UK Daily Mail by David Rose that is making headlines today, even hitting the Drudge Report. The headline is: Forget global warming – it’s Cycle … Continue reading
Posted in Climate data, Solar
Tagged climate, Daily Mail, David Archibald, Drudge Report, Henrik Svensmark, Little Ice Age, Met Office, NASA, Solar cycle, Thames
186 Comments
First Estimate of Solar Cycle 25 Amplitude – may be the smallest in over 300 years
Guest post by David Archibald Predicting the amplitude of Solar Cycle 24 was a big business. Jan Janssens provides the most complete table of Solar Cycle 24 predictions at: http://users.telenet.be/j.janssens/SC24.html Prediction activity for Solar Cycle 24 seemed to have peaked … Continue reading
Posted in Solar
Tagged David Archibald, David Hathaway, Jan Janssens, NASA, Solar cycle, Solar cycle 24, sun, Sunspot
251 Comments
