(AccuWeather) Has there been a noticeable decrease in snow cover across the northern Hemisphere since the mid 1960′s?
Well, it depends on the time of the year.
My friends from the Rutgers University Global Snow Lab (my alma mata 89′) keep a close track of global snow cover and have data that go back to the 1960′s.
For the month of January, there has actually been an upward trend in snow cover over the past dozen years. Part of the reason for this is that the significant warming in the high latitudes over the past 20 years has caused an increase in moisture (warmer air holds more moisture than cold) and thus more snowfall over areas that are normally quite dry during the winter.
See? There’s nothing that can disprove their pet cult. Under their doctrines, snowball earth was caused by too much heat.