European efforts to reach a common definition of sustainable investments risk fragmenting the market they aimed to unify, as investors are deeply divided over which energy sources should qualify as as green.
A Reuters survey of 16 fund managers with $6 trillion (¥690 trillion) in assets found that investors were at odds over Brussels' plan, drafted at the end of last year, to class investments in some natural gas and nuclear power as environmentally sustainable.
The split among investors could herald a divergence in the green credentials of funds meant to be sustainable, making it harder for ordinary investors to make a judgment and complicating Brussels' attempts to set a clear standard.