Mother Nature Network: Recently, the Citizen Times in Asheville, North Carolina, carried an encouraging article about the rapid spread of solar power among Western North Carolina's many beer brewers. Six of the region's local brewers have gone solar, installing rooftop solar arrays to power part or all of their operations. Those companies include Highland Brewing, Appalachian Mountain Brewery, Innovation Brewing, French Broad, Sierra Nevada and New Belgium (the last two have just recently opened East Coast operations in...