One hundred thousand residents of Flint, Michigan, could use water only from bottles or filters during a years-long lead contamination crisis, which started when the city switched to a new drinking water source in 2014. As part of a class assignment that grew into a case study, Purdue University researchers found that during the first three weeks of the disaster alone, anywhere from 31 to 100 million bottles were generated as waste. This means that Flint should have been buried in plastic by the time the crisis ended in 2017. But it wasn’t. Read the full press release here.