(Reuters) – An investment group led by Al Gore, former U.S. Vice president, launched Wednesday a $1.7 Billion fund to acquire minority stakes in privately held companies. It aimed at a sustainable future and called for a minimum of 2,000 shareholders.

Generation Investment, which was founded by Gore and has $36 Billion under management, is a private-and public-company fund that focuses on strong investments in ESG records.

Other Generation funds may invest in private companies, including Asana’s work management platform, the used iPhone and gadget market Back Market as well as Convoy digital freight network and Convoy.

ESG-focused startups often focus on private capital sources. But, fund executives are concerned that private assets could be exempted form disclosure requirements like those on carbon emissions currently under development by securities regulators.

Generation stated that the indirect and direct carbon emissions of private portfolio companies included in its Sustainable Solutions Fund III were disclosed by Generation.