Business
A.M. Edition for Nov. 5. The world would need to make a $4 trillion annual investment to get to net-zero carbon emissions by 2050. It may sound like a lot, but the U.S.'s expenditure would be a smaller percentage of GDP than its spending on railroads in the 1850s. WSJ's Greg Ip says Wall Street stands ready to deliver the money needed, if governments can ensure climate-change initiatives are a commercially viable investment. Peter Granitz hosts. Learn more about your ad choices. Visit megaphone.fm/adchoices