… which had an impact regardless of the long-term climatic trend. In the years 2009 / 2010 to 2012 / 13 there were several consecutive hard winters with adverse … despite short-term levelling impacts from a number of hard winters between 2009 and 2013. Nevertheless, it is clear that despite progressive climatic warming, … which had an impact regardless of the long-term climatic trend. In the years 2009 / 2010 to 2012 / 13 there were several consecutive hard winters with adverse …