Is the art world going to save the warming planet? Yes, according to novelist and poet Ben Okri, for art deals with vision, which is needed to paint the picture of a sustainable future amid the urgent calls for change. “Don’t talk yourselves down,” he told the art-world audience members at the Gallery Climate Coalition (GCC) conference “Decarbonising the Art World” at London’s Barbican Centre on November 24. Okri’s words were not empty. The GCC, a confederation of some 600 dealers, has set the ambitious goals of reducing the art world’s carbon emissions by 50 percent (from 2018 and 2019 levels) and achieving zero-waste operations by 2030. The conference marked the official launch…