Read here. Month after month we see new revelations that the Climategate-style of science promoted by the alarmist IPCC is one of shoddiness and extremes. As with the incredible errors discovered during the infamous Glaciergate fiasco, now a new peer-reviewed study finds that Alaska's glacier loss has been (surprise!) "overestimated" by some 33%+.
The new Berthier et al. research highlighted the massive uncertainties associated with climate science, and that previous IPCC proclamations about the Earth's climate conditions continue to be exposed as serial exaggerations, designed to frighten policymakers.
"...a team of five scientists from France, Arizona, and British Columbia focused their attention on what has happened to glaciers in Alaska over the past 50 years.....“However, these estimates of ice loss in Alaska are based on measurements of a limited number of glaciers that are extrapolated to constrain ice wastage in the many thousands of others. Uncertainties in these estimates arise, for example, from the complex pattern of decadal elevation changes at the scale of individual glaciers and mountain ranges.” .....the massive Columbian glacier (in the center) has experienced significant ice mass loss over the past five decades. However, the smaller Harvard glacier to the west has “thickened and advanced” according to the authors.....“We find that between 1962 and 2006, Alaskan glaciers lost 41.9 ± 8.6 km3 yr-1 of water 34% less than estimated earlier. Reasons for our lower values include the higher spatial resolution of our glacier inventory as well as the reduction of ice thinning underneath debris and at the glacier margins, which were not resolved in earlier work. We suggest that estimates of mass loss from glaciers and ice caps in other mountain regions could be subject to similar revisions.”" [E. Berthier, E. Schiefer, G.K.C. Clarke, B. Menounos, and F. Rémy2010: Nature GeoScience]