National: By this time of year the heavy layers of snow over Mount Lebanon should be beginning to melt into cold springs that nourish the purplish-green cedar cones buried in the dark, damp earth. But something is wrong. Lebanon has experienced an unseasonably warm winter and very little rain or snow has fallen. Instead of the five or six metres of deep snow that should have blanketed the steep mountains of the Shouf region located south-east of Beirut there has been perhaps 5-12cm. Scientists …