Nasdaq Inc. is among a group of investors backing a carbon-capture project in Stockholm, in what is the first sale of carbon-removal credits licensed by the European Union. The EU initiative aims to spur further investment in a system potentially worth hundreds of billions of dollars. EU policymakers hope a step-up in the flow of corporate cash for removals of carbon can help it achieve its ambitious goal of emissions neutrality within the coming decades. But critics warn that the removal of polluting gases already emitted shouldn’t replace efforts to cut emissions in the first place. The EU’s methodology “will…