Natural climate processes overshadow recent human-induced Walker circulation trends

Institute for Basic Science A new study, published this week in the journal Nature Climate Change, shows that the recent intensification of the equatorial Pacific wind system, known as Walker Circulation, is unrelated to human influences and can be explained by natural processes. This result ends a long-standing debate on the drivers of an unprecedented…

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Model-land, Butterflies and Hawkmoths

Guest Essay by Kip Hansen   Welcome to Model-Land, ladies and gentlemen, boys and girls!  “Model-land is a hypothetical world in which our simulations are perfect, an attractive fairy-tale state of mind in which optimizing a simulation invariably reflects desirable pathways in the real world.”  Here in Model-Land you’ll see fabulous “computational simulations and associated…

Inequality promotes deforestation in Latin America

What can’t you show with models?~ctm From EurekAlert! University of Bern Tropical deforestation is a major contributor to climate change and loss of local and global ecosystem functions. Latin America accounts for a large share of remaining tropical forests, but also features deforestation rates well above the world average. Here, the biggest driver of deforestation…

Global Energy Balances … Except When It Doesn’t

Guest Post by Willis Eschenbach. I came across an interesting 2014 paper called “The energy balance over land and oceans: an assessment based on direct observations and CMIP5 climate models“. In it, they make a number of comparisons between observational data and 43 climate models regarding the large-scale energy flows of the planet. Here’s a typical…

Snowpack declines may stunt tree growth and forests’ ability to store carbon emissions

And if my aunt had…..~ctm From Eurekalert Public Release: 1-Dec-2018 New study findings also suggest a variety of industries in the Northeast could be negatively affected by warming trends, including maple syrup, timber and snow sports Advanced Science Research Center, GC/CUNY NEW YORK, December 1, 2018 – Researchers conducting a 5-year-long study examining snow cover…

Gavin's Twitter Trick

Last week, Larry Kummer posted a very thoughtful article here on WUWT: A climate science milestone: a successful 10-year forecast! At first glance, this did look like “a successful 10-year forecast: The observations track closer to the model ensemble mean (P50) than most other models and the 2016 El Niño spikes at least a little bit…

Pat Michaels: "A Climate Roadmap for Pres. Trump"

By David Middleton OPINION A climate roadmap for President Trump by Patrick Michaels | Jul 14, 2017 This week, President Trump is likely getting an earful in Paris over his extrication of the U.S. from the Paris climate agreement earlier this year. But our withdrawal will be meaningless unless he follows up with two important…

Reconciling predictions of climate change

From Eurekalert, New framework accounts for conflicting estimates of global temperature increases Harvard John A. Paulson School of Engineering and Applied Sciences   AUDIO: SEAS researchers Peter Huybers and Cristian Proistosescu resolved a major conflict in estimates of how much the Earth will warm in response to a doubling of carbon dioxide in the… view…