In BriefA spin-off of an ambitious idea to refreeze the Arctic usingmachines is about to get a trial run in Switzerland where a team ofresearchers plan to add ice to a glacier in the Alps using snowmachines. Snow Machines <\/p>\n
One of the strongest and most obvious indications of global warming is the receding polar ice caps, most specifically, the Arctic sheets. In February of this year, scientists brought up a peculiar solutionfor combating melting ice caps: refreezing them. Now, this seemingly outlandish idea is about to get a test run in Switzerland. <\/p>\n
The pilot Swiss plan is similar to the proposed Arctic solution, except instead of entire ice caps, the target would be a small, artificial glacierat the foot of the Diavolezzafirn glacier. Whilethe Arctic plan proposed the use of wind-powered pumpsto spew water on top of ice, this mini-version of the project willuse snow machines to preserve the glacier over the summer by covering it with artificially created snow. <\/p>\n
We have to carry the glacier through the summer, Utrecht University researcher Johannes Oerlemans explained toNew Scientist. <\/p>\n
This ambitious plan is one of several ideas to combat global warming, which range from decreasing fossil fuel dependence to even geoengineering the planet. <\/p>\n
If it works, the next step would be to try it out on the larger Morteratsch glacier in the eastern Swiss Alps, a plan Oerlemans recently presented at an annual meeting of the European Geosciences Union in Vienna, Austria. Rising temperatures due to global warming have caused this vast valley glacier to recede at an alarming rate of 30 to 40 meters (98 to 131 feet) each year, according to a New Scientist report. <\/p>\n
Oerlemans and his colleagues, however, dont just plan to keep the Swiss glaciers from receding. They want to grow them back, and 4,000 snow machines might just do the trick. In principle, even the snout could grow back, said Oerlemans. Within 20 years, he concluded, the glacier might be able to grow by 800 meters (2,625 feet) if researchers blow just a few centimeters of artificial snow over a 0.5 square kilometer (.19 sqaure mile) plateau each summer to give it cover. <\/p>\n
In the case of the Arctic, however, it wouldnt be that simple. The area is huge, roughly 107square kilometers(3.8 million square miles), and the plan to refreeze it with water pump would require a hugeinvestment. If it worked, however, an extra meter of sea ice could be added in just one year, according to the Arctic plan, winding the ice cap clock back by 17 years. <\/p>\n
Buying that sort of time might just be worth the effort required to put seemingly impossible ideas to fight climate change into action, and this smaller project in Switzerland could providethe confidence needed to give them a shot. <\/p>\n
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Link: In BriefA spin-off of an ambitious idea to refreeze the Arctic usingmachines is about to get a trial run in Switzerland where a team ofresearchers plan to add ice to a glacier in the Alps using snowmachines. Continue reading
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