Site: Judith Curry

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Climate Etc. is hosted by Dr Judith Curry and provides a forum for climate researchers, academics and technical experts from other fields, citizen scientists, and the interested public to engage in a discussion on topics related to climate science and the science-policy interface.

She is Professor and Chair of the School of Earth and Atmospheric Sciences at the Georgia Institute of Technology and President (co-owner) of Climate Forecast Applications Network (CFAN). She received a Ph.D. in Geophysical Sciences from the University of Chicago in 1982. Prior to joining the faculty at Georgia Tech, she held faculty positions at the University of Colorado, Penn State University and Purdue University. She currently serves on the NASA Advisory Council Earth Science Subcommittee and the DOE Biological and Environmental Science Advisory Committee, and has recently served on the National Academies Climate Research Committee and the Space Studies Board, and the NOAA Climate Working Group. She is a Fellow of the American Meteorological Society, the American Association for the Advancement of Science, and the American Geophysical Union.

Recent Articles

Judith Curry: Stealth advocacy: a survey of weathercasters’ views on climate change

by Mike Smith For a decade, the weathercaster and broadcast meteorology communities have been subject of a focused campaign to force them to cover global warming in a manner acceptable to the American Meteorological Society, the American Geophysical Union and …

2017-07-19 21:40   Click to comment

Judith Curry: Nature Unbound IV – The 2400-year Bray cycle. Part B

by Javier In Part A, we established the existence of a ~ 2400-year climate cycle, discovered in 1968 by Roger Bray. This climate cycle correlates in period and phase with a ~ 2400-year cycle in the production of cosmogenic isotopes, …

2017-07-17 03:39   Click to comment

Judith Curry: Week in review – science edition

by Judith Curry A few things that caught my eye this past week. I’ve studied Larsen C and its giant iceberg for years – it’s not a simple story of climate change [link]   Southern Ocean Decadal Variability and Predictability [link] …

2017-07-16 02:47   Click to comment

Judith Curry: Alarm about alarmism

by Judith Curry The climate change debate has entered what we might call the “Campfire Phase”, in which the goal is to tell the scariest story. – Oren Cass (twitter) David Wallace-Wells has a recent cover story in NYMagazine:  The …

2017-07-15 15:59   Click to comment

Judith Curry: Nature Unbound IV – The 2400-year Bray cycle. Part A

By Javier The existence of a ~ 2400-year climate cycle, discovered in 1968 by Roger Bray, is supported by abundant evidence from vegetation changes, glacier re-advances, atmospheric changes reflected in alterations in wind patterns, oceanic temperature and salinity changes, drift …

2017-07-12 00:17   Click to comment

Judith Curry: Framing the challenge for the climate red team

by Judith Curry There is an opportunity to steer the proposed red team exercise in a useful direction.  The first step is to frame the problem to be addressed. The climate red team continues to be discussed in the media …

2017-07-10 01:25   Click to comment

Judith Curry: Does a new paper really reconcile instrumental and model-based climate sensitivity estimates?

by Nic Lewis A new paper in Science Advances by Cristian Proistosescu and Peter Huybers (hereafter PH17) claims that accounting for the decline in feedback strength over time that occurs in most CMIP5 coupled global climate models (GCMs), brings observationally-based …

2017-07-08 13:24   Click to comment

Judith Curry: The Uncertainty Monster: Lessons From Non-Orthodox Economics

by Vincent Randall A perspective on economists’ grappling with the ‘uncertainty monster.’ In this essay I am going to try to introduce non-economists who work in fields where they are first coming into contact with the ‘uncertainty monster’ – as …

2017-07-05 14:58   Click to comment

Judith Curry: What is red teaming?

by Judith Curry Last week, Scott Pruitt, EPA Administrator, stated he intended to form a ‘red team’ to debate climate science.  What exactly is ‘red teaming’, and how can this be implemented in a way that is useful for climate …

2017-07-03 16:57   Click to comment

Judith Curry: Week in review – science edition

by Judith Curry A few things that caught my eye this past week. Large reductions in solar energy production due to dust and particulate air pollution [link]  Towards a new estimate of “time of emergence” of anthropogenic warming –  [link] …

2017-07-02 16:32   Click to comment

Judith Curry: Estimating the cost to America of damage from climate change in the 21st century

  by Larry Kummer, originally posted at the Fabius Maximus website. Another peer-reviewed paper predicting disaster from climate change by misrepresenting and exaggerating the science. We can still learn much from it. “Estimating economic damage from climate change in the …

2017-07-01 15:39   Click to comment

Judith Curry: Consensus enforcers versus the Trump administration

by Judith Curry Tough days on The Hill for the enforcers of the climate consensus. While EPA Administrator Scott Pruitt has been taking most of the ‘heat’ for the Trump administrations climate policy, this past week Energy Secretary Rick Perry …

2017-06-24 19:12   Click to comment

Judith Curry: National Climate Assessment and the Trump administration

The National Climate Assessment must be redirected or terminated by Patrick J. Michaels Periodic National Assessments of the effects of climate change on the U.S. are mandated by the 1990 Global Change Research Act. The next Assessment Report is scheduled to …

2017-06-21 23:40   Click to comment

Judith Curry: The radically fragmented and decentralized age of information

by Judith Curry Why real nobodies are more powerful than repressed somebodies. The U.S. first tweeting President has upended our perceptions on the appropriate method for a President communicate. Millions of people are perplexed and horrified by President Trump’s tweets. …

2017-06-20 21:11   Click to comment

Judith Curry: Week in review – science edition

by Judith Curry A few things that caught my eye this past week Researchers uncover a cause for early 20th century Arctic warming [link] JC note: basically, the stadium wave Internal and external forcing of multidecadal Atlantic climate variability over …

2017-06-10 20:06   Click to comment

Judith Curry: CFAN’s forecast for the 2017 Atlantic hurricane season

by Judith Curry Climate Forecast Applications Network (CFAN)’s  first seasonal forecast for  Atlantic hurricanes is based on a breakthrough in understanding of the impact of global climate dynamics on Atlantic hurricane activity. Research conducted by Senior Scientist Jim Johnstone at …

2017-06-08 14:47   Click to comment

Judith Curry: Paris Accord: QTIIPS

by Judith Curry QTIIPS stands for Quantitatively Trivial Impact + Intense Political Symbolism. – Keith Hennessey Over the past week, I’ve read over a hundred articles related to Trump’s withdrawal from the Paris Accord.  I was vaguely wondering how to …

2017-06-04 19:10   Click to comment

Judith Curry: Nature Unbound III – Holocene climate variability (Part B)

by Javier The Neoglacial has been a period of progressive cooling, increasing aridity, and advancing glaciers, culminating in the Little Ice Age. The main Holocene climatic cycle of ~ 2400 years delimits periods of more stable climatic conditions which were …

2017-05-28 22:04   Click to comment

Judith Curry: Week in review – science edition

by Judith Curry A few things that caught my eye this past week. An overview of studies of observed climate change in the Hindu Kush Himalayan (HKH) region [link] Study: sea level rise acceleration still uncertain, we won’t have statistical …

2017-05-20 19:02   Click to comment

Judith Curry: Uncertainty about the Climate Uncertainty Monster

by Judith Curry The many dimensions of the climate uncertainty monster. Bret Stephens’ climate change op-ed of several weeks ago Climate of Complete Certainty spawned a number of articles related to uncertainty and climate change. Andy Revkin’s article in response …

2017-05-19 14:59   Click to comment

Judith Curry: Electricity in Texas: is 100% renewables feasible? Part I

by Peter Davies Scenarios to understand how load, wind, solar PV and storage interact and whether a 100% renewable grid for Texas is technically feasible. Given the stated policy of the new USA administration this might not seem the best …

2017-05-14 19:33   Click to comment

Judith Curry: Renewable resources and the importance of generation diversity

by Planning Engineer How feasible are calls for 100% renewable energy? In previous columns I’ve discussed characteristics of wind and solar generation that will result in increasing concerns as they grow to provide an increase portion of the electric supply. …

2017-05-09 20:25   Click to comment

Judith Curry: Nye’s Quadrant

by Judith Curry The scary emergence of Nye’s Quadrant in dominating the public discourse on climate change. If you are unfamiliar with Pasteur’s Quadrant, read my previous post [link].  The focus of my previous post was on use-inspired basic research. …

2017-05-02 17:54   Click to comment

Judith Curry: Nature Unbound III: Holocene climate variability (Part A)

by Javier Vinos First in a two part series on Holocene climate variability. Summary: Holocene climate is characterized by two initial millennia of fast warming followed by four millennia of higher temperatures and humidity, and a progressively accelerating cooling and …

2017-04-30 20:32   Click to comment

Judith Curry: Science Marchers, Secretary Perry’s Memo and Bill Nye’s Optimism

By Planning Engineer On April 14th, 2017 Rick Perry wrote a memo headed “STUDY EXAMINING ELECTRICITY MARKETS AND RELAIBILITY” calling for study to investigate how long term energy trends my impact the grid. My “sciencey” friends on social media are …

2017-04-24 19:52   Click to comment

Judith Curry: How hurricanes replenish their vast supply of rain water

by Makarieva A.M., Gorshkov V.G., Nefiodov A.V., Chikunov A.V., Sheil D., Nobre A.D., Li B.-L. New questions and ideas about hurricanes and their power. Predicting the intensity of tropical cyclones, hurricanes and typhoons is a recognized challenge. We are grateful to …

2017-04-23 19:26   Click to comment

Judith Curry: Untangling the March for Science

by Judith Curry Pondering some thorny issues regarding science, its place in society and its relationship to politics. Well today is the much-hyped March for Science. Last month I wrote a post Exactly what are scientists marching for?  Since my previous …

2017-04-22 19:30   Click to comment

Judith Curry: A ‘Red Team’ Exercise Would Strengthen Climate Science

by Judith Curry Put the ‘consensus’ to a test, and improve public understanding, though an open and adversarial process. – Steve Koonin Steve Koonin has an op-ed published today in the Wall Street Journal:  A ‘Red Team’ Exercise Would Strengthen Climate …

2017-04-21 16:23   Click to comment

Judith Curry: How inconstant are climate feedbacks – and does it matter?

by Nic Lewis Kyle Armour has a new paper out in Nature Climate Change: “Energy budget constraints on climate sensitivity in light of inconstant climate feedbacks”. Its two key claims are: “global climate models robustly show that feedbacks vary over …

2017-04-18 13:37   Click to comment

Judith Curry: Discussion thread: reactions to House Hearing

by Judith Curry Climate Feedback has interviewed a number of scientists regarding the recent House Hearing on climate science. The article:  Scientists reactions to the US House Science Committee hearing on climate science. The scientists that were interviewed:  James Renwick, …

2017-04-15 16:33   Click to comment


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