Ethan Brodsky packed up $50,000 worth of scientific equipment on the back of his snowmobile and headed out to the middle of a snowy white expanse on the Greenland ice sheet.
â??Wow, this is just like a real snowmobile,â? Brodsky thought to himself.
Once a few miles out, he peered back toward camp to see a thin line in the snow. He smiled, knowing that the trail behind him was his only impact on the landscape.
Brodskyâ??s snowmobile was a pollution-free electric vehicle built by engineering students from the University of Wisconsin-Madisonâ??s Clean Snowmobile Team.