Yesterday, we visited the Institute of Alpine and Arctic Research's stable isotope lab. Part of the tour included stepping inside a freezer to look at ice cores. These hold clues to our past climate, as the physical properties of ice and the material trapped in it can be used to reconstruct the climate over the age range of the core. Inside the freezer it was a chilly -8 F (-22 C)!
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A filtered snow sample, collected from Pikes Peak last week. The peak was pretty barren and the only deep snow we could find was in a drift nearby the road. Despite the snow looking white, this is what we found when we melted and filtered it. It's a mix of local dust (color matches the nearby rocks where it was sampled) and black carbon from the road. Don't eat the snow!
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Fun times on Pikes Peak today, digging snow pits and sampling the snow for contaminants. We had to go up to 13,000 ft. to get some good snow, compared with 11,400 ft. last year. The peak has been quite barren this season! Barely any snow was on the summit at 14,100 ft. ... See MoreSee Less