Big-box stores could help slash emissions and save millions by installing solar panels on their roofs. So why aren’t more of them doing it?
CNN — As the US attempts to wean itself off its heavy reliance on fossil fuels and shift to cleaner energy sources, many experts are eyeing a promising solution: your neighborhood big-box stores and shopping malls. The rooftops and parking lot space available at retail giants like Walmart, Target and Costco is massive. And these…