The short answer is $2trillion ...
You hear a lot about the impacts of regulation but this one should probably be at the top of anyone's list.
According to a recent report from Global Sustainable Investment Alliance, sustainable investment assets fell by 15% between 2018 and 2020 (from $14 trillion to $12trillion) as a result of the introduction of rules about funds greenwashing. The Sustainable Finance Disclosure Regulation (or SFDR) requires funds managers to consider and disclose the ESG credentials of their funds.