• No Long-Term Changes In El Ninos Or La Ninas

    • Date: 08/11/12

    Historical changes in El Niño and La Niña characteristics in an ocean reanalysis Abstract: The variation of El Niño Southern Oscillation (ENSO) events from the mid-nineteenth century until the beginning of the twenty-first century is explored using an ocean reanalysis. A comparison of the reanalysis with three sea surface temperature reconstructions shows that the timing […]

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  • After Sandy: Can New York Be Made Safe From The Sea? Should We Care?

    • Date: 05/11/12
    • Walter Russell Mead, The Observatory

    It’s inevitable; after every natural disaster a conversation starts about how to prevent a recurrence. New Yorkers are launching that conversation now, and while it’s likely to be an intense and lively debate, effective flood protection for low lying neighborhoods in the New York metropolitan area is a long way off. The final tally is […]

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  • Roger Pielke Jr.: Hurricanes And Human Choice

    • Date: 01/11/12
    • Roger Pielke Jr, The Wall Street Journal

    The only strategies that will help us effectively prepare for future disasters are those that have succeeded in the past: strategic land use, structural protection, and effective forecasts, warnings and evacuations. That is the real lesson of Sandy. Hurricane Sandy left in its path some impressive statistics. Its central pressure was the lowest ever recorded […]

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  • New Paper: Positive Feedback From Low Clouds May Be Overstated By 50%

    • Date: 27/10/12
    • The Hockey Schtick

    A new paper published in Geophysical Research Letters finds computer models greatly exaggerate positive feedback from tropical low clouds by 50%. Meanwhile, ample direct observations indicate that both low and high cloud feedback is instead net negative. GEOPHYSICAL RESEARCH LETTERS, VOL. 39, L20807, 6 PP., 2012 doi:10.1029/2012GL053265 How may low-cloud radiative properties simulated in the current climate influence low-cloud feedbacks under global warming? […]

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  • David Whitehouse: No Underlying Global Warming In Recent Years

    • Date: 23/10/12

    In the debate about the significance of the observed global annual average temperature standstill – whose duration now stands at the past 16 years – some have argued that it has little climatic significance. Not only is it shorter than the canonical thirty years used as the minimum to deduce climatic effects, it is also […]

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  • Atlantic Sea Surface Temperature As Warm In 1775 As Today

    • Date: 18/10/12
    • David Whitehouse

    Another piece of research using climate proxies has cast some light on the recent evolution of sea surface temperature in a region of the Atlantic. The researchers, from the National University of Mexico and the Woods Hole Oceanographic Institution in the USA, writing in the journal Paleoceanography, point out that accurate low-latitude sea surface temperature […]

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  • Climate Warmer 1000 Years Ago.

    • Date: 18/10/12
    • David Whitehouse

    A new paper, looking back at the climate of the past two thousand years, published in the journal “Climate of the Past,” will either cause something of a stir, or provide confirmation of what some regard as having already emerged from the peer-reviewed scientific literature. The title of the paper is, “The extra-tropical Northern Hemisphere […]

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  • An Updated Hadcrut4 – And Some Surprises

    • Date: 10/10/12

    The new and improved global temperature database, Hadcrut4, has been updated at last. Previously it had been complete to 2010. Hadcrut4 is a combination of Crutem4 and Hadsst3 – land and ocean data – that includes better sampling of the Arctic – the most rapidly warming region on Earth. When Hadcrut4 first came out it […]

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