A significant change in snow accumulation is considered a key sign of extreme climate change by climate doomsday "experts" - the southern Andes mountain range has not experienced a major snowpack change
Read here. The familiar refrain from the chorus of the fringe climate doomsday community is that human CO2 emissions are provoking drastic extreme climate change across the world. Unfortunately, witless reporters from the traditional media outlets parrot the doomsday hysteria without any due diligence.
However, a large body of scientists do not accept the "doomsday" claims, thus they continue their research to better understand the past and current climate conditions. A new study by Masiokas et al. did just that by researching the snow accumulation in the southern Andean mountain range to determine if modern climate conditions were much different than those of the historical past.
This new peer-reviewed study determined that today's mountain snowpack differs very little with those found in previous centuries.
"..."compiled and combined an extensive dataset of different precipitation proxies in an attempt to cross-validate the resulting time series and estimate, as reliably as possible, and extend as far back as possible, the information on winter snow accumulation levels in the central Andes of Chile and Argentina,"...extend a regional 1951-2010 snowpack record back to AD 1866, after which "snow accumulation variations since AD 1150 were inferred from precipitation-sensitive tree-ring series."...the eight researchers determined that "variations observed in the last 60 years are not particularly anomalous when assessed in a multi-century context." In fact, they report that "periods ending in the late 1100s, during the early 1300s and late 1400s, during the early and late 1600s, and during the mid 1700s and mid 1800s appear to have been at least as extreme as the early 20th century period and well above the highest levels seen in recent decades of the instrumental record."" [M. H. Masiokas, R. Villalba, D. A. Christie, E. Betman, B. H. Luckman, C. Le Quesne, M. R. Prieto, S. Mauget 2012: Journal of Geophysical Research]