These effects are particularly evident in autumn and winter consistent with sea - ice loss, but are also apparent in summer, possibly related to earlier snow melt on high - latitude land. (realclimate.org)
The dust can cover snow on mountains, for example, resulting in faster and earlier snow melt. (green.blogs.nytimes.com)
UPDATE: You can go to Iceage Now here and read about the early cold weather thus far like early snow in china and killer frost in Alberta, Canada. (co2insanity.com)