Key findings of the IPCC AR5 Synthesis Report (official slide show)

November 7, 2014 6:29 am0 comments
Key findings of the IPCC AR5 Synthesis Report (official slide show)

Journalist’s note (MQ): Below are the slides from the IPCC’s power point presentation (available for download) on the key findings of the IPCC AR5 Synthesis Report. Material is republished here under fair use for educational purposes.  End.

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IPCC releases its Summary for Policymakers for its Fifth Assessment

6:19 am0 comments
IPCC releases its Summary for Policymakers for its Fifth Assessment

The Intergovernmental Panel on Climate Change (IPCC) culminated its Fifth Assessment Report (AR5) on climate change with the release of the Synthesis Report (SYR) and attendant Summary for Policymakers (SPM) last Saturday. The purpose of the SYR is to provide a clear scientific view on the current state of knowledge on climate change, its projected […]

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NASA: Study Finds No Measurable Warming in Deep Ocean Since 2005 [General Commentary]

October 28, 2014 3:27 pm0 comments
Credit: NOAA Okeanos Explorer Program, INDEX-SATAL 2010

Summary of Comments from the CCNF Scientist Community: Dr. Andrew Dessler: This is interesting and will help us shake out problems in our understanding of where heat is being stored in the ocean.  That said… this result doesn’t tell us much about how much warming we’ll get over the next 100 years. — […]

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Climate Change and Timescales (Part 1): Why “Global Wobbling” doesn’t matter

October 20, 2014 3:04 pm0 comments
Image by Michael Quirke (graphic at top from Australian Bureau of Meteorology)

At a recent meeting of the U.S. House of Representatives Committee on Science, Space and Technology, Rep. Steve Stockman (R-TX) asked White House Science Advisor John Holdren why “global wobbling” was not included in climate models of modern climate change (YouTube). After all, if global wobbling was so important in ending the […]

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Uncertainty doesn’t imply nothing is known or nothing should be done

October 17, 2014 3:39 pm3 comments
Climate Forcing and Climate Sensitivity with ranges of Lewis and Crok paper and IPCC AR5

While Judith Curry brings up some interesting notions in ‘Climate Sensitivity Uncertainy‘, I don’t agree with many of her arguments and conclusions. I’m pleased that Dr. Curry acknowledges that “uncertainty in itself is not a reason for inaction” (see also ‘Why Climate Uncertainty is No Excuse for Doing Nothing‘ on […]

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What climate scientists are saying about the global warming “hiatus”

October 8, 2014 7:36 pm0 comments
What climate scientists are saying about the global warming "hiatus", a post from CCNF's 'Climate Change in the Media' section

What are our readers to make of the slow-down in global surface temperature rise after 1998? What’s often heard in my neck of the woods is something along the lines of what Dr. Neil Frank, former KHOU-TV meteorologist and beloved Houston personality, wrote in the Houston Chronicle last Friday: “If global warming will be […]

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The Carbon Cycle and Climate Models

September 5, 2014 10:57 pm0 comments
The Carbon Cycle and Climate Models

To tell the story from the beginning, consider the carbon atom – 6 protons, 4 valence electrons, 4th most abundant element in the universe – basis of all life on earth. It’s locked up in rocks and plants, dissolved into our oceans, and mixed up with other gases in our […]

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Part II: History of climate change science (1969-1990) according to Daniel Yergin [General Commentary]

August 27, 2014 1:21 am0 comments
Dr. Bert Bolin, CSPAN

Introduction by Michael Quirke: As a layman trying to understand the climate change issue, I have been on the hunt for a fair and readable accounting of the history of climate science [and the science of climate change] for the CCNF Scientist Community and readers to discuss. In a previous post, I presented a […]

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Fears of Freezing: The 1970s are calling; They want their climate policies back

August 26, 2014 12:13 pm3 comments
Headline from The Melbourne, Feb. 18, 1979.

A top economic advisor to the Australian Government recently suggested in an op-ed published by the national daily The Australian that one scenario we should be prepared for is global cooling due to a possible change in solar activity. Certain reports in the U.S. media have also suggested cooling may already be upon us because […]

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What Is Business As Usual?

August 20, 2014 5:15 pm0 comments
Comparison of CMIP5 results and MAGICC output for global temperature increase.  Note that temperature increase is presented relatively to the 1986-2005 average in this figure.  From AR5 WGIII, Chapter 6 final draft.

This post examines the scenarios and pathways used over the years by the Intergovernmental Panel on Climate Change (IPCC) to represent possible future emissions, atmospheric concentrations, and temperature changes. In particular, it seeks to determine which, if any, of the current Representative Concentration Pathways (RCPs) can be regarded as “business […]

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