As a growing number of global leaders pledged to achieve net-zero carbon emissions ahead of this week’s climate conference in Glasgow, an awkward question hovered in the background: Is it worth it? That is as much an economic as a scientific question, and the economics of climate are far less settled than the science.

arrow-rightcaret-downcaret-left-boldcaret-right-boldcaret-rightemailfacebooklinkedinmag-smallslider-arrow-leftslider-arrow-rightx-twitterxyoutube