Study: cold-season temperature variability has significantly decreased over the mid- to high-latitude Northern Hemisphere in recent decades

This is one of the reasons severe weather has been on the decrease. Less variance means less mixing, and mixing of extreme temperature differential air masses is what contributes to volatile weather events like tornado outbreaks. Source: http://www1.ncdc.noaa.gov/pub/data/cmb/images/tornado/clim/EF3-EF5.png Here is the paper: Arctic amplification decreases temperature variance in northern mid- to high-latitudes   About these…

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The ‘strawman’ albedo effect

From ETH Zurich , something that actually makes sense. Straw albedo mitigates extreme heat Wheat fields are often tilled immediately after the crop is harvested, removing the light-coloured stubble and crop residues from the soil surface and bringing dark bare earth to the top. Post-harvest tilling is a widely practised and common management technique in…

Maunder and Dalton Sunspot Minima

Guest Post by Willis Eschenbach In a recent interchange over at Joanne Nova’s always interesting blog, I’d said that the slow changes in the sun have little effect on temperature. Someone asked me, well, what about the cold temperatures during the Maunder and Dalton sunspot minima? And I thought … hey, what about them? I…

The World is Wearying of Climate Catastrophism

Maurice Newman, an influential Australian Government Advisor, attacks Climate Alarmism Maurice Newman, Chairman of the Prime Minister’s Business Advisory Council, has published a scathing attack on climate alarmism in “The Australian”, a prominent Aussie daily newspaper. According to Newman, the world is wearying of constant catastrophism.