High school eco conceptual art

I gave a challenging conceptual project to the Mascoma Valley Regional High School Portfolio class. I asked them to come up with an environmental issue that touches the local area, that we would use as a base for a collaborative artwork. I was so pleased that they came up with an idea very quickly- the problem of road salt. Here in New Hampshire, we had an especially long winter, with record breaking snowfall, lasting from before Thanksgiving until April. So road salt was an apt concept.
As the group developed their concept idea, they decided that they would construct a huge salt shaker that people could walk into, and fill it with facts about road salt. They researched their facts, and worked together to design and construct their salt shaker. The finished work was installed for the local art/environment festival day.