Plan A, a carbon accounting and ESG (environmental, social, and governance) reporting platform for corporations, has raised $27 million in a Series A round of funding led by U.S. VC giant Lightspeed Venture partners. Technically the funding is an extension of a $10 million Series A round it announced nearly two years ago, meaning for all intents and purposes this is the closing of a $37 million Series A round, taking its total raised to $42 million across its six year history.