Los Angeles, United States | AFP | Electric carmaker Tesla has diversified into the alternative energy business, on Friday unveiling solar roofs for environmentally friendly homes. “Global warming is a serious crisis and we need to do something about that,” company founder Elon Musk said during a news conference at Universal Studios in Los Angeles. Musk noted that electric cars in the past “didn’t look good… They were like a golf cart,” but Tesla automobiles […]