Monthly Archives: September 2013

IPCC’s pause ‘logic’

Posted on September 30, 2013 by | 426 comments

by Judith Curry

Well here it is, the pause discussion is buried in Box 9.2 of the IPCC Working Group I Report.

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426 Comments

Posted in Attribution, IPCC

How the IPCC forgot to mention the pause

Posted on September 29, 2013 by | 327 comments

by Judith Curry

[Marotzke] attributed the oversight to a tendency of each group working on each of the 14 chapters to rely on some other chapter to deal with the issue. And anyone who was thinking about it at all thought some other chapter should handle the issue. – CS Monitor

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327 Comments

Posted in Uncategorized

2 from the Australian Financial Review

Posted on September 29, 2013 by | 185 comments

The latest IPCC report will not bridge the ideological divide on climate change so it is up to governments to find the sensible centre. – Warwick McKibben

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185 Comments

Posted in Policy

IPCC diagnosis – permanent paradigm paralysis

Posted on September 28, 2013 by | 658 comments

by Judith Curry

Diagnosis: paradigm paralysis, caused by motivated reasoning, oversimplification, and consensus seeking; worsened and made permanent by a vicious positive feedback effect at the climate science-policy interface.

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658 Comments

Posted in IPCC, Policy, Scientific method

IPCC scientists recommend having the Earth put down

Posted on September 28, 2013 by | 150 comments

by Judith Curry

Earth is in a lot of pain, folks.  Time to think about sending it off peacefully, for its own sake.  Look, at the end of the day, Earth is 4.5 billion years old and had a great life. The last thing you want to do is wait and draw this difficult ordeal out any further. – The Onion

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150 Comments

Posted in Uncategorized

Open thread weekend

Posted on September 27, 2013 by | 91 comments

by Judith Curry

It’s your turn to introduce topics for discussion.

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91 Comments

Posted in Week in review

95% (?)

Posted on September 27, 2013 by | 524 comments

Ok, it is now official:

“The long-term climate model simulations show a trend in global-mean surface temperature from 1951 to 2012 that agrees with the observed trend (very high confidence). There are, however, differences between simulated and observed trends over periods as short as 10 to 15 years”

It is extremely likely that more than half of the observed increase in global average surface temperature from 1951 to 2010 was caused by the anthropogenic increase in greenhouse gas concentrations and other anthropogenic forcings together. The best estimate of the human induced contribution to warming is similar to the observed warming over this period.

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524 Comments

Posted in Attribution, IPCC

The relentless increase of ocean heat

Posted on September 26, 2013 by | 422 comments

by Judith Curry

Ocean heat sequestration: false sense of security, or a solution to the global (surface) warming problem?

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422 Comments

Posted in Data and observations

Shell game

Posted on September 26, 2013 by | 105 comments

by Rud Istvan

Is ocean acidification the  new global warming?

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105 Comments

Posted in Climate change impacts

Nic Lewis vs the UK Met Office

Posted on September 25, 2013 by | 205 comments

by Judith Curry

Julia Slingo, Chief Scientist at the UK Met Office,   has responded to Nic Lewis’ critique of UK Met Office’s report on the pause.

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205 Comments

Posted in Uncategorized

Can science fix climate change?

Posted on September 25, 2013 by | 277 comments

by Judith Curry

Global warming is irreversible without massive geoengineering of the atmosphere’s chemistry. – Fred Pearce

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277 Comments

Posted in Uncategorized

Five critical questions for the IPCC

Posted on September 24, 2013 by | 358 comments

by Judith Curry

If you had the opportunity to ask 5 critical questions for the IPCC, what would you ask?

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358 Comments

Posted in IPCC

When bad news is good

Posted on September 24, 2013 by | 121 comments

by Rud Istvan

The crescendo of climate change ‘bad’ news leading up to release of problematic AR5 SPM continues.

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121 Comments

Posted in Uncategorized

Quote of the week

Posted on September 23, 2013 by | 301 comments

by Judith Curry

Climate researchers have an obligation not to environmental policy but to the truth.

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301 Comments

Posted in Ethics

Unintended consequences of energy policy on biodiversity

Posted on September 23, 2013 by | 211 comments

by Judith Curry

Mitigation, adaptation, and the threat to biodiversity.

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211 Comments

Posted in Climate change impacts, Policy

Sunday’s climate ‘logic’

Posted on September 22, 2013 by | 794 comments

by Judith Curry

Some interesting tweets this morning on my twitter feed.

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794 Comments

Posted in Uncategorized

Politics of the 2C target

Posted on September 21, 2013 by | 333 comments

by Judith Curry

The modification of the 2C climate target will put an end to the vision of a “science-based” climate policy – Oliver Geden

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333 Comments

Posted in Climate change impacts, Policy, Politics

Open thread weekend

Posted on September 21, 2013 by | 165 comments

by Judith Curry

It’s your turn to introduce topics for discussion

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165 Comments

Posted in Week in review

The IPCC’s ‘inconvenient truth’

Posted on September 20, 2013 by | 298 comments

by Judith Curry

I have a fairly lengthy op-ed that has been published in The Australian.

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298 Comments

Posted in Consensus, IPCC

Quote of the day

Posted on September 20, 2013 by | 92 comments

by Judith Curry

There are a number of explanations (for the hiatus), any one of which might be correct.  That is very different from saying: ‘We have no idea what’s going on’. – Myles Allen

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92 Comments

Posted in Uncategorized

CO2 ‘control knob’ fallacy (?)

Posted on September 20, 2013 by | 399 comments

by Judith Curry

Previous IPCC reports — and much of the debate over how to react to them — have appeared to treat the Earth’s climate as if it were a domestic central heating system, with carbon emissions analogous to the dial on the thermostat: a small tweak here will result in a temperature rise of precisely 0.2°C and so on. – The Spectator

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399 Comments

Posted in Greenhouse effect, Sensitivity & feedbacks

Peer review: the skeptic filter

Posted on September 19, 2013 by | 417 comments

by Judith Curry

As the IPCC struggles with its inconvenient truth – the pause and the growing discrepancy between models and observations – the obvious question is: why is the IPCC just starting to grapple with this issue now, essentially two minutes before midnite of the release of the AR5?

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417 Comments

Posted in IPCC, Skeptics

Quote of the week

Posted on September 19, 2013 by | 153 comments

by Judith Curry

I can envisage an irony of history where climatology enters a period of crisis and loses its central place in public discourse about climate change, thus opening up discursive spaces for pragmatic options to deal with the problem. – Reiner Grundman

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153 Comments

Posted in IPCC

Consensus denialism

Posted on September 17, 2013 by | 653 comments

by Judith Curry

Consensus denial:   attacking the expert consensus on human caused global warming.  – Dana Nuccitelli

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653 Comments

Posted in Consensus

Inter-decadal Variation in Northern Hemisphere sea ice

Posted on September 16, 2013 by | 384 comments

by Greg Goodman

On the deceleration in the decline of the Arctic sea ice.

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384 Comments

Posted in Polar regions