World’s small glaciers will be gone by 2100
A new study in Nature Geoscience examining glaciers melting due to climate change forecasts tough times for the world’s small glaciers, but offers a more hopeful outlook for Himalayan glaciers.
The research, the most comprehensive of its kind carried out so far, shows that about half of glaciers under 5 square kilometers in area will disappear entirely by 2100, in the process contributing during that time period the same amount of water to global sea level rise as the melting of ice sheets in Antarctica and Greenland, about 12 centimeters. Glaciers of this size comprise about 40% of the world’s total glaciers.
Report co-author Valentina Radic, from the University of British Columbia, comments, “While the overall sea level increase projections in our study are on par with IPCC studies, our results are more detailed and regionally resolved. This allows us to get a better picture of projected regional ice volume change and potential impacts on local water supplies, and changes in glacier size distribution” (Science Codex).
As for regional impact of climate change on glaciers, the research projects by 2100 a decline of 50-90% for Europe’s glaciers, 45-90% in the Caucasus Mountains, and 60-85% for New Zealand.
Though these are dramatic declines, in terms of sea level rise the effect of losing this glaciers is expected to be small. The greatest glacial contributor to sea level rise will come from melting in Arctic Canada, Alaska and landmass-bound glaciers in Antarctica.
Himalayan Glaciers Only Lose Small Percentage of Area by 2100
In contradiction to dire projections in the last IPCC report for Himalayan glaciers–which were found to be inaccurately included approximately at this time last year–this research finds that the effects of climate change on Himalayan glaciers are likely to be less than initially suggested.
In fact, according to the multiple models used in this research, Himalayan glaciers show only a 10-15% decline by 2100, with some actually showing an overall increase in area–presumably due to different snowfall projections in each model.
Many thanks to Mathew McDermott
Geez, I thought intelligent Conservatives actually still believed in Climate Change Lt! Evidently they all drink the koolaid now? How sad.
The changes to our earth will start moving at a faster pace and by the time the yahoo’s realize it..it will be too late to do much about it.
I showed this to a co-worker, a Republican. He said it was “liberal bullshit.” This guy has advanced graduate degrees in, among other things, aeronautical engineering. It just goes to show that education is not the be all and end all of intellectual thinking.