If the financial services industry was a nation, it would rank as the world’s fifth-largest emitter of greenhouse gases. A study authored by the Sierra Club and the Center for American Progress shows that eight of the biggest US banks and 10 of its largest asset managers combined to finance an estimated 2 billion tonnes of carbon dioxide emissions, based on year-end disclosures from last year, or about 1 percent less than Russia produced. The emissions are equal to 432 million passenger vehicles driven for one year — and the number would have been considerably higher if scope 3 data and ot...