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: Week in review – science edition

by Judith Curry A few things that caught my eye this past week. Concepts for dealing with complexity of weather and climate. [link] Nature: Halfway to doubling of CO₂ radiative forcing (3.7W/m²), but doubling CO₂ ppm comes later due to log …

2017-09-24 16:32   Click to comment

Judith Curry: Week in review – science and policy edition

by Judith Curry A few things that caught my eye this past week. New J.Clim paper: hi res model finds fewer but stronger, wetter, and larger tropical cyclones with global warming [link]  … PNAS:  the biosphere has become less constrained by …

2017-09-16 14:42   Click to comment

Judith Curry: Nature Unbound V – The elusive 1500-year Holocene cycle

by Javier The existence of a 1500-year climatic cycle during the Holocene, related to the glacial Dansgaard-Oeschger cycle, is a matter of intense debate. However, by introducing precise timing requirements it can be shown that the 1500-year cycle displayed in …

2017-09-15 17:07   Click to comment

Judith Curry: Hurricane Irma eyes Florida

by Judith Curry Cat 5 Hurricane Irma is one for the record books; it’s eye is on Florida. ___________ Summary Major Hurricane Irma is predicted to strike the SW coast of Florida as a Cat 4 early Sun a.m., with …

2017-09-08 15:43   Click to comment

Judith Curry: Week in review – science edition

by Judith Curry A few things that caught my eye this past week. Modulation of the seasonal cycle of Antarctic sea ice extent related to the Southern Annular Mode [link] Extreme warming in the Kara Sea and Barents Sea during …

2017-09-02 18:41   Click to comment

Judith Curry: Hurricane Harvey: long-range forecasts

by Judith Curry The 12 year drought of major hurricane landfalls in the U.S. is over, with catastrophic impacts in Texas.  Predictions of Hurricane Harvey illustrate the realization of extended- and long-range hurricane forecasts. This blog post analyzes the forecasts …

2017-08-28 01:02   Click to comment

Judith Curry: Reviewing the Climate Science Special Report

by Judith Curry Calling on CE Denizens to review the Climate Science Special Report:  nominate an official reviewer, or participate in the CE Crowdsourced Review. Pat Michaels recently posted an article at CE National Climate Assessment and the Tump administration. …

2017-08-21 00:17   Click to comment

Judith Curry: Reviewing the CCSR: Discussion thread

by Judith Curry This post is running parallel to the post Reviewing the Climate Science Special Report (a technical post), to accommodate general discussion on the topicFiled under: Scientific method

2017-08-21 00:16   Click to comment

Judith Curry: Week in review – science & policy edition

by Judith Curry A few things that caught my eye this past week. New study finds most of East #Antarctic ice sheet should remain stable. [link] Linking global temperature and Arctic sea ice changes [link] … On the possible contribution of …

2017-08-19 18:53   Click to comment

Judith Curry: What do we know about Arctic sea ice trends?

by Dr. Ronan Connolly & Dr. Michael Connolly Satellite observations indicate that the average Arctic sea ice extent has generally decreased since the start of the satellite records in October 1978. Is this period long enough to assess whether the …

2017-08-16 19:55   Click to comment

Judith Curry: The blame game

by Judith Curry For the sake of argument, let’s accept the IPCC conclusions regarding attribution of global warming, and their 21st century projections.  So, exactly who in the U.S. bears the blame for current and future damages? This is not …

2017-08-15 01:50   Click to comment

Judith Curry: Nature Unbound IV – The 2400 Bray cycle. Part C

by Javier A possible mechanism for the effect of solar variability on climate, whereby solar variability acts over the stratospheric pressure system transmitting the changes top-down, and over ocean temperatures bottom-up. Summary: In part A, we established the existence of …

2017-08-07 15:39   Click to comment

Judith Curry: Electricity in Texas. Part II: the cost of a 100% renewable grid

by Peter Davies While onshore wind generation has been relatively inexpensive for some time, solar PV and lithium ion battery storage costs have recently shown dramatic reductions. So can Texas, with excellent onshore wind and solar resources, be powered economically …

2017-08-06 14:21   Click to comment

Judith Curry: Week in review – science and policy edition

by Judith Curry A few things that caught my eye this past week. A new mechanism for warm-season precipitation response to global warming [link] Ocean heat content variability in an ensemble of twentieth century ocean reanalyses [link] Understanding drivers of …

2017-08-05 18:22   Click to comment

Judith Curry: Update on the strength of aerosol forcing

by Frank Bosse Increasing evidence of small aerosol forcing supports the importance of internal variability in explaining inter hemispheric differences in temperature variability. In the CMIP5 climate models, we find two strong anthropogenic forcings influencing the climate: the warming greenhouse …

2017-07-29 11:50   Click to comment

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


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