• Will We See A Drop In Global Temperatures When PDO & AMO Go Cold Together?

    • Date: 21/10/13
    • Paul Homewood, Not A Lot Of People Know That

    The PDO has now turned cold, and, with the AMO still in its warm phase, temperatures are flatlining. By the mid 2020’s we are likely to see both great ocean patterns stuck together in their cold phases well into the 2030’s. It is well established that both the Atlantic Multidecadal & the Pacific Decadal Oscillations affect […]

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  • Antarctic Ice Sets New All Time Record

    • Date: 19/10/13
    • Paul Homewood, Not A Lot Of People Know That

    Quite astonishingly, Antarctic sea ice has set another record for maximum extent, beating the previous record of 19.513 million sq km, set on 21st September this year. http://nsidc.org/data/seaice_index/index.html What makes the new record so astonishing is that it was set in October, on the 1st. Climatologically, the maximum extent is reached on 22nd September, so […]

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  • Reality Check: Minimal Extreme Weather Events In The US This Year

    • Date: 19/10/13
    • SI Weather News

    There have been many forecasts in the news in recent years predicting more and more extreme weather-related events in the US, but for 2013 that prediction has been way off the mark. Whether you’re talking about tornadoes, wildfires, extreme heat or hurricanes, the good news is that weather-related disasters in the US are all way […]

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  • Maybe That IPCC 95% Certainty Was Correct After All

    • Date: 15/10/13
    • Roy Spencer

    I was working up some global comparisons between the CMIP5 models (provided by the KNMI Climate Explorer via John Christy) and the HadCRUT4 surface temperatures, as well as our UAH lower tropospheric temperatures. And I think I discovered what the IPCC meant regarding 95% certainty and global warming. I’m sure it was an honest mistake […]

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  • Steve McIntyre: How The IPCC Fixed The Facts

    • Date: 09/10/13
    • Steve McIntyre, Climate Audit

    Why did the IPCC delete a graph that shows the discrepancy between observations and climate projections? AR5 Second Order Draft (SOD) Figures 1.4 and 1.5 showed the discrepancy between observations and projections from previous assessment reports. SOD Figure 1.5 (see below as annotated) directly showed the discrepancy for AR4 without additional clutter from earlier assessment […]

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  • Nicola Scafetta: Climate Models Used By IPCC Fail To Reproduce Decadal & Multidecadal Patterns Since 1850

    • Date: 05/10/13
    • Nicola Scafetta, Earth Science Reviews

    Nicola Scafetta (2013) Discussion on climate oscillations: CMIP5 general circulation models versus a semi-empirical harmonic model based on astronomical cycles, Earth-Science Reviews 126 (2013) 321–357 Abstract: Power spectra of global surface temperature (GST) records (available since 1850) reveal major periodicities at about 9.1, 10–11, 19–22 and 59–62 years. Equivalent oscillations are found in numerous multisecular paleoclimatic records. The Coupled Model […]

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  • Did The IPCC AR5 Take The ‘Dangerous’ Out Of Global Warming?

    • Date: 04/10/13
    • Judith Curry, Climate Etc.

    Abrupt changes that aren’t really abrupt and irreversible changes that aren’t really – er – irreversible. Catastrophe? Er – we don’t know. Section 12.5.5 in the WG1 Report provides some important insights on what is most commonly regarded as the ‘dangerous’ aspects of AGW. For background on this topic, see this previous Climate Etc. post Redefining dangerous climate […]

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  • The First Alpine Glaciers Are Growing Again

    • Date: 30/09/13
    • Fabienne Riklin, Schweiz am Sonntag

    For the Swiss Alps 2013 was a good summer. Not since ten years ago have the glaciers lost as little mass as this year. And some seem to be gaining a little weight.   «It would appear that the Findel glacier is gaining mass», says Swiss glaciologist Matthias Huss. Foto: Keystone The Findel glacier high above […]

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