• Cloudy Forecast: Growing Uncertainty Over Cloud Behaviour

    • Date: 16/03/14
    • Gabriel Popkin, Science News

    The biggest source of climate uncertainty is white and fluffy. In recent years, the uncertainty has actually grown. UP IN THE AIR  Clouds can both warm and cool the planet. How clouds will respond to global warming is the largest source of uncertainty in climate change predictions. From space, clouds appear to perform an intricate and never-ending […]

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  • The Long Way To Solar Maximum

    • Date: 09/03/14
    • Russ Steele, The Next Grand Minimum

    Everybody has noticed it: Over the last few months, solar activity has shifted into a higher gear. Since October last year, more and bigger sunspot groups have appeared on the solar disk, gradually driving the monthly sunspot number to new heights. Indeed, in February, preliminary values (SILSO) for the international sunspot number reached 102.8, the […]

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  • Official: Great Lakes Ice Coverage Headed For Record

    • Date: 04/03/14
    • Liam Ford, Chicago Tribune

    The ice on the Great Lakes this week covered more of the lakes’ surface than at any other time since the record-setting year of 1979, and could break that year’s record this week. The Great Lakes were 90.5 percent ice-covered as of Sunday, the greatest percentage of ice cover since the record-setting year of 1979, according to […]

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  • Volcanoes And The ‘Pause’

    • Date: 27/02/14
    • Dr David Whitehouse

    Another week and another explanation for the ‘pause’ in global surface/lower atmosphere temperatures. This time it’s the return of the ‘small volcanoes add up to big effect’ explanation in the form of a paper by Santer et al 2014 in Nature Geoscience. Could the cumulative effect from small volcanoes be causing a reduction in sunlight […]

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  • Great Lakes Ice Cover Reaches 88 Percent; Highest Levels Since 1994

    • Date: 24/02/14
    • Julie Kent, The Cleveland Leader

    In mid-February 2014, ice cover on the Great Lakes reached 88 percent, levels that have not been observed in 20 years.   Since 1973, the average maximum ice extend is just over 50 percent. It has surpassed 80 percent only five times over the course of the past four decades. The lowest average ice extent […]

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  • New Paper: Antarctic Glacier Melted Just As Fast 8000 Years Ago

    • Date: 21/02/14
    • Lewis Page, The Register

    Top boffins from the British Antarctic Survey say that the Pine Island Glacier – famous as a possible major cause of global-warming-powered sea level rises – was melting just as fast thousands of years ago as it is melting today. “This paper [just published] is part of a wide range of international scientific efforts to […]

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  • The Pacific And The Pause

    • Date: 14/02/14
    • Dr David Whitehouse

    Every few weeks along comes another explanation or contributing factor to the post-1997 global surface temperature pause. The list of factors is now a long one, which is curious considering that often the pause is dismissed as non-existent. We now have stratospheric water vapour variations, the Sun’s low activity, lack of wind in the Pacific, […]

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  • Standstill, What Standstill?

    • Date: 10/02/14
    • Dr David Whitehouse

    The World Meteorological Organisation (WMO) has released its assessment of the global surface temperature for 2013. It calculates its own global temperature based on HadCRUT4, NOAA and NASA. Unsurprisingly it shows that 2013 tied with 2007 as the sixth warmest year with a temperature anomaly of 0.50 deg C above the 1961 – 90 average. “The […]

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