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Judith Curry

Judith Curry - 2020-01-17 - Original post - cached version

by Ross McKitrick

Challenging the claim that a large set of climate model runs published since 1970’s are consistent with observations for the right reasons.

Introduction

Zeke Hausfather et al. (2019) (herein ZH19) examined a large set of climate model runs published since...

Judith Curry - 2020-01-11 - Original post - cached version

by Frank Bosse

Equilibrium climate sensitivity computed from the latest energy imbalance data.

The Earth Energy Imbalance (EEI) is a key issue for estimating climate sensitivity.

If EEI is positive then the Earth’s climate system gains energy; if it’s negative the system...

Judith Curry - 2020-01-09 - Original post - cached version

by Jacques Hagoort

Why the IPCC carbon budgets in SR1.5 are over conservative, and the CO2 reduction pathways are too stringent.

Abstract Carbon Budgets specify the total amount of CO2 that can be emitted before global warming exceeds a certain threshold. Since the introduction of...

Judith Curry - 2020-01-04 - Original post - cached version

by Judith Curry

A few things that caught my eye this past week.

Decadal changes of the reflected solar radiation and the Earth’s energy imbalance [link] Over the 2000–2018 period the Earth Energy Imbalance (EEI) appears to have a downward trend of −0.16 ± 0.11 W/m2dec.

...

Judith Curry - 2020-01-01 - Original post - cached version

by Judith Curry

Happy New Year!

An end of year post.  Not that I have much to say at the moment, but I think we need a new thread.

Here are a few ‘end of year’ articles, looking back and looking forward.  I put these forward for discussion, let me know if you have spotted...

Judith Curry - 2019-12-27 - Original post - cached version

by Vaughan Pratt

An alternative perspective on 3 degrees C?

This post was originally intended as a short comment questioning certain aspects of the methodology in JC’s post of December 23, “3 degrees C?”. But every methodology is bound to have shortcomings, raising the possibility...

Judith Curry - 2019-12-23 - Original post - cached version

by Judith Curry

Is 3 C warming over the 21st century now the ‘best estimate’?  A reframing of how we think about climate change over the 21st century, and my arguments for 1 C.

There has been much discussion over on twitter of the new article by David Wallace-Wells:  We’re Getting...

Judith Curry - 2019-12-22 - Original post - cached version

by Judith Curry

A few things that caught my eye this past week

Global average mortality and loss rates down 5x over last decade. Effect is strongest for poorest populations. [link]

Important new research on the underlying topography of Antarctica [link]

Two intervals...

Judith Curry - 2019-12-20 - Original post - cached version

By Nic Lewis

In an earlier article here I discussed a Comment on Lewis and Curry 2018 (LC18) by Kevin Cowtan and Peter Jacobs (CJ20), and a Reply from myself and Judith Curry recently published by Journal of Climate (copy available here). I wrote that I would defer dealing with the...

Judith Curry - 2019-12-16 - Original post - cached version

By Nic Lewis

A comment on LC18 (recent paper by Lewis and Curry on climate sensitivity)  by Cowtan and Jacobs has been published, along with our response.

Introduction

In an earlier article here I discussed the Lewis and Curry (2018) paper “The impact of recent forcing and...

Judith Curry - 2019-12-14 - Original post - cached version

by Judith Curry

“I genuinely have the fear that climate change is going to kill me and all my family, I’m not even kidding it’s  all I have thought about for the last 9 months every second of the day. It’s making my sick to my stomach, I’m not eating or sleeping and I’m getting panic...

Judith Curry - 2019-12-07 - Original post - cached version

by Judith Curry

A few things that caught my eye this past week.

Tim Palmer and Bjorn Stevens: The challenge of understanding and estimating climate change [link]

A new paper indicates “present” temperatures are the coldest of the last 4 to 7 thousand years in Fennoscandia (...

Judith Curry - 2019-12-02 - Original post - cached version

by Judith Curry

The UN Climate Change Conference this week in Madrid provides an important opportunity to reflect on state of the public debate surrounding climate change.

The UN Climate Conference (COP25) is beginning today in Madrid.  I’ve been invited to write an op-ed for a...

Judith Curry - 2019-11-24 - Original post - cached version

by Judith Curry

A few things that caught my eye this past week

Winter weather whiplash: impact of meteorological events in seasonally snow covered regions [link]

Coral records of variable stress impacts and possible acclimatization to recent marine heat wave events on the...

Judith Curry - 2019-11-12 - Original post - cached version

by Judith Curry

My reflections on Climategate 10 years later, and also reflections on my reflections of 5 years ago.

Last week, an email from Rob Bradley reminded me of my previous blog post The legacy of Climategate: 5 years later. That post was the last in a sequence of posts at...

Judith Curry - 2019-11-09 - Original post - cached version

by Judith Curry

A few things that caught my eye this past week.

Effects of atmospheric CO2 enrichment on net photosynthesis and dark respiration rates [link]

Identifying key driving processes of major recent heat waves [link]

Reassessing Southern Ocean air-sea CO2...

Judith Curry - 2019-10-29 - Original post - cached version

by Judith Curry

“Letting go of the phantastic mathematical objects and achievables of model- land can lead to more relevant information on the real world and thus better-informed decision- making.” – Erica Thompson and Lenny Smith

The title and motivation for this post comes from...

Judith Curry - 2019-10-26 - Original post - cached version

by Judith Curry

A few things that caught my eye this past week.

Coupled modes of North Atlantic ocean-atmosphere variability and the onset of the Little Ice Age [link]

Marine Ice Cliff Instability mitigated by slow removal of ice shelves [link]  Overview/media article [link...

Judith Curry - 2019-10-21 - Original post - cached version

by Planning Engineer

Five years ago today I started guest blogging on Climate Etc., focusing on energy related issues.

My initial goal was to share some insights in a more formal fashion on energy related issues being discussed in the comments. I didn’t really get the values of...

Judith Curry - 2019-10-18 - Original post - cached version

By Nic Lewis

The recently published open-access paper “How accurately can the climate sensitivity to CO2 be estimated from historical climate change?” by Gregory et al.[i] makes a number of assertions, many uncontentious but others in my view unjustified, misleading or definitely...

Judith Curry - 2019-10-16 - Original post - cached version

by Judith Curry

Some thoughts in response to a query from a reporter.

I received the following questions today from a reporter, related to climate change and ‘timelines.’   These questions are good topics for discussion.

My answers are provided below

From your...

Judith Curry - 2019-10-05 - Original post - cached version

by Judith Curry

A few things that caught my eye this past week.

Was Common ra glacier expansion in the Arctic Atlantic region triggered by unforced atmospheric cooling? [link]

The amplitude and origin of sea level variability during the Pliocene epoch [link]

Ghil and...

Judith Curry - 2019-09-26 - Original post - cached version

By Nic Lewis

The editors of Nature have retracted the Resplandy et al. paper.

Readers may recall that last autumn I wrote several article critiquing the Resplandy et al. (2018) ocean heat uptake study in Nature, which was based on measured changes in the O2/N2 ratio (δO2/N2) and...

Judith Curry - 2019-09-21 - Original post - cached version

by Judith Curry

A few things that caught my eye this past week.

Indian Ocean warming can strengthen the Atlantic meridional overturning circulation [link]

Indian ocean warming trend reduces Pacific warming response to anthropogenic greenhouse gases: an interbasin thermostat...

Judith Curry - 2019-09-11 - Original post - cached version

by Dr. Paul Viminitz

Of the things I care most about, AGW is near the bottom. But because, as George W. Bush put it, either you’re with us or you’re against them, I think I’d rather be interestingly wrong than politically correct. Accordingly I rehearse what I take to be the case for AGW...

Judith Curry - 2019-09-10 - Original post - cached version

by Judith Curry

Doing so erodes scientific credibility — and distracts from the urgent need to shore up our vulnerability to storms’ impacts.

Here is the link to my op-ed in the National Review.  Full text below.

n the aftermath of Hurricane Dorian’s catastrophic impacts on...

Judith Curry - 2019-09-07 - Original post - cached version

by Judith Curry

I used to be concerned about ‘consensus enforcement’ on the topic of climate change.  Now I am concerned about ‘alarmism enforcement.’

Ever since Hurricane Katrina in 2005, any hurricane causing catastrophic damage has been seized upon  by climate alarmists as...

Judith Curry - 2019-09-01 - Original post - cached version

by Javier

By knowing or estimating where in the solar cycle we are we can get an estimate of the chances of a particular outcome even years ahead.

El Niño Southern Oscillation (ENSO) is the main source of interannual tropical climate variability with an important effect on global...

Judith Curry - 2019-08-31 - Original post - cached version

by Judith Curry

A few things that caught my eye this past week.

Several papers of fundamental importance:

*Important new paper by Peter Minnett:  The response of the ocean thermal skin layer to variations in incident infrared radiation [link]

*A provocative paper...

Judith Curry - 2019-08-22 - Original post - cached version

by Judith Curry

My new manuscript is now available.

A link to my new paper ‘Climate Change: What’s the Worst Case?’ is provided here [worst case paper final (1)]

A few words on the intended audience and motivation for writing this:

First and foremost, this is written...

Judith Curry - 2019-08-21 - Original post - cached version

by Judith Curry

A new book by Oppenheimer, Oreskes et al. entitled ‘Discerning Experts: The Practices of Scientific Assessment for Environmental Policy‘ makes a case against consensus seeking in climate science assessments.

I have long railed against the consensus-seeking process...

Judith Curry - 2019-08-14 - Original post - cached version
The latest travesty in consensus ‘enforcement’, published by Nature. There is a new paper published in Nature, entitled Discrepancies in scientific authority and media visibility of climate change scientists and contrarians. . Abstract. We juxtapose 386 prominent contrarians with 386 expert...
Judith Curry - 2019-08-11 - Original post - cached version

by Judith Curry

A few things that caught my eye this past week.

‘modern climate sensitivity is relatively low in the context of the geological record, as a result of relatively weak feedbacks due to a relatively low CO2 baseline, and the presence of ice and relatively small ocean...

Judith Curry - 2019-08-10 - Original post - cached version

by Judith Curry

Discussion thread on the new IPCC Report on Climate Change and Land.

The complete Report can be downloaded here [link].

I’m working on digesting all this, here are some articles that I’ve flagged on my twitter feed.

Comprehensive summary of the report...

Judith Curry - 2019-07-29 - Original post - cached version

by Andy West

The role of children in the culture of climate catastrophism

1.Serious scenarios for children: reality or culture?

1.1 Frightening our children: When do we find it acceptable to institutionally frighten children? While our first thought is perhaps that this...

Judith Curry - 2019-07-27 - Original post - cached version

by Judith Curry

A few things that caught my eye this past week.

Variability in decadal global temperature increases strongly with climate sensitivity [link]

1200 year reconstruction of temperature extremes in the northeastern Mediterannean region [link] Extreme heat years...

Judith Curry - 2019-07-21 - Original post - cached version

by Judith Curry

“The atmosphere bias of climate science makes it impossible for them to see geological forces and therefore, impossible for them to understand the earth’s climate.” – Thongchai

When conducting the literature survey for my report on sea level rise [link; see section...

Judith Curry - 2019-07-13 - Original post - cached version

by Judith Curry

A few things that caught my eye this past week.

Reviews of Geophysics:  Observing and modeling ice sheet surface mass balance [link]

Effects of variability in the Atlantic Ocean circulation [link]

“Global and Regional Increase of Precipitation...

Judith Curry - 2019-07-08 - Original post - cached version

by Judith Curry

It’s getting worse.

About 5 years ago, I wrote two blog posts on climate scientists’ pre-traumatic stress syndrome:

Pre-traumatic stress syndrome: climate trauma survival trips Pre-traumatic stress syndrome: climate scientists speak out

Mother Jones has a...

Judith Curry - 2019-06-29 - Original post - cached version

by Judith Curry

A few things that caught my eye this past week.

(http://bit.ly/2NfdWba ) 2,000 years of North Atlantic climate change and considers how ocean circulation may have contributed to historical climate shifts. More from  http://bit.ly/2Lkquvx .

New HadSST4.0 data...

Judith Curry - 2019-06-27 - Original post - cached version

by Judith Curry

Some reflections, stimulated by yesterday’s Congressional Hearing, on the different strategies of presenting Congressional testimony.

Yesterday’s Hearing provided an ‘interesting’ contrast in approaches to presenting testimony, when comparing my testimony with...

Judith Curry - 2019-06-25 - Original post - cached version

by Judith Curry

The House Oversight and Reform Environmental Subcommittee in a Hearing on Recovery, Resilience and Readiness – Contending with Natural Disasters in the Wake of Climate Change begins at 2 pm EDT.

The announcement for the Hearing is posted [here].  Based on previous...

Judith Curry - 2019-06-23 - Original post - cached version

by Judith Curry

On Tuesday June 25, I will be testifying before the House Oversight and Reform Environmental Subcommittee in a Hearing on Recovery, Resilience and Readiness – Contending with Natural Disasters in the Wake of Climate Change.

The announcement for the Hearing is...

Judith Curry - 2019-06-21 - Original post - cached version

by Judith Curry

How valid conclusions often lay hidden within research reports, masked by plausible but unjustified conclusions reached in those reports.  And how the IPCC institutionalizes such masking errors in climate science.

In the previous post, we discussed the motivated...

Judith Curry - 2019-06-19 - Original post - cached version

by Judith Curry

Insights into the motivated reasoning of climate scientists, including my own efforts to sort out my own biases and motivated reasoning following publication of the Webster et al. (2005) paper

A recent twitter thread by Moshe Hoffman (h/t Larry Kummer) reminded me...

Judith Curry - 2019-06-16 - Original post - cached version

by Judith Curry

A few things that caught my eye this past week.

Runs that reduce sea ice also result in a significant decrease in the frequency and magnitude of extreme warm and cold temperature anomalies”. Reduction in northern mid-latitude 2-m temperature variability due to...

Judith Curry - 2019-06-13 - Original post - cached version

by Judith Curry

Politics versus science in attributing extreme weather events to manmade global warming.

If you follow me on twitter, you may have noticed that I was scheduled to testify before the House Oversight and Reform Committee on Jun 12 [link].  The subject of the Hearing...

Judith Curry - 2019-06-04 - Original post - cached version

by Judith Curry and Jim Johnstone

CFAN predicts an active North Atlantic hurricane season season.

The Atlantic hurricane has begun.  We are off to an early start with one wimpy subtropical storm that lasted less than a day, and a small system that is trying to spin up in the Bay...

Judith Curry - 2019-05-25 - Original post - cached version

by Judith Curry

A few things that caught my eye this past week.

QBO primer [link]

Periodicity disruption of a model quasibiennial oscillation of equatorial winds https://journals.aps.org/prl/accepted/2d072Y42Lef16d5ef7d47192a2a4f7c1d27a126c5 …

Influence of the QBO on...

Judith Curry - 2019-05-22 - Original post - cached version

by Judith Curry

The House Natural Resources Committee Subcommittee on Water, Oceans and Wildlife is holding a Hearing today on Responding to the Global Assessment Report of the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services.

The link to the...

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