We hear from our friends at Curbed LA that Kevin Southerland, a principal at LA firm Assembledge+, has left to form his own firm, architecture 350. And while we’re very fond of Southerland’s work, and of sustainable architecture, we’re a little overwhelmed with the name, which, according to his new site, “refers to the parts per million amount of carbon dioxide that a global consensus of scientists has deemed sustainable for human life to carry on as we know it.” Whoah. The name is relevant because we’ve reached 382, which seems like a very very concerning statistic. Does this mean that life as we know it is about to end? Meanwhile we look forward to seeing what the firm comes up with. They’ll be located on Doheny Drive in Beverly Hills, and will focus on (of course) sustainable, contemporary residential projects.