Bankers are seeing a chance for profit in tackling climate change. Is it a turning point? Maybe, but as Gillian Tett explains: the jury is still out on whether Wall Street's change of heart is a reflection of our changing times or just pure opportunism. In this insightful piece for the Finacial Times, Tett takes a closer look into Larry Fink, co-founder of BlackRock — "the world’s largest asset management group" — who believes "there is no company whose business model won’t be profoundly affected by the transition to a net zero economy," but these initiatives will eventually "become entirely mainstream, and not sit in a ringfenced category." "If the world was going to hit the goals of the 2015 Paris Climate Accord, Mark Carney declared, 'one-fifth and one-third [of the] world’s proven reserves of oil, gas and coal' would become unusable, leaving 'the vast majority of reserves 'stranded' — ie worthless. And since 'the exposure of UK investors, including insurance companies [and banks], to these shifts is potentially huge', he warned of a potential future market panic if investors suddenly woke up to these risks, or a so-called 'Minsky moment' (named after the 20th-century economist Hyman Minsky)."