Microsoft hires Sam Altman and Greg Brockman from OpenAI to lead a new AI research unit, signaling its commitment to AI advancement. The move follows OpenAI appointing Twitch co-founder, Emmett Shear, as interim CEO, leaving ousted former CEO Sam Altman without a return. Friday marked the first record of the global average surface temperature crossing the 2°C threshold, according to the European Center for Medium-range Weather Forecasts (ECMWF).