The most amazing greening on Earth

By Patrick J. Michaels We’ve long been fond of showing the satellite evidence for planetary greening caused by increasing carbon dioxide, particularly the work of Zhu et al.(2016): Figure 1: Trends in Leaf Area Index around the planet. Note the units are in hundredths (10-2) of meters per square meter. An increase of 25 (Purple, 

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Natural Variability Dominates Recent Climate Change

Paper Reviewed Babich, V.V., Darin, A.V., Smolyaninova, L.G. and Kalugin, I.A. 2017. Natural periodic processes and climate variability in the Northern Hemisphere. Doklady Earth Sciences 477: 1470-1472. How natural is current climate change? The above question has fostered considerable discussion in the global warming debate in recent years. Responses range across a spectrum of viewpoints; 

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10 New Reconstructions Show Today’s Temperatures Still Among The Coldest Of The Last 10,000 Years

By Kenneth Richard Even though CO2 concentrations hovered well below 300 ppm throughout most of the Holocene, newly published paleoclimate reconstructions affirm that today’s surface temperatures are only slightly warmer (if at all) than the coldest periods of the last 10,000 years.  This contradicts the perspective that temperatures rise in concert with CO2 concentrations. Bottom Graph 

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Historically Warmer Climates Supported More Settlements in Northeast China

Paper Reviewed Jia, D., Li, Y. and Fang, X. 2018. Complexity of factors influencing the spatiotemporal distribution of archaeological settlements in northeast China over the past millennium. Quaternary Research 89: 413-424. Deteriorating climates, brought on by cooling temperatures, reduce the carrying capacity of agrarian lands. Consequently, they often deprive the human population of sufficient food; 

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Beyond Milankovitch

By Donald Rapp On the terminations of Ice Ages. Terminations occur on solar up-lobes There is no doubt that there is merit in the widely accepted Milankovitch theory that Ice Ages and their terminations are controlled by solar input to the NH in mid-summer. It is also clear that relying on the solar input to 

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Global land change from 1982 to 2016

By Xiao-Peng Song, Matthew C. Hansen, Stephen V. Stehman, Peter V. Potapov, Alexandra Tyukavina, Eric F. Vermote & John R. Townshend Abstract Land change is a cause and consequence of global environmental change1,2. Changes in land use and land cover considerably alter the Earth’s energy balance and biogeochemical cycles, which contributes to climate change and—in 

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