How do you prove your green investment products are in fact green, when the evidence doesn’t yet exist? That’s the thorny question Europe’s fund managers are trying to answer, as new sustainable finance legislation rushes into effect.

“There’s a lot of ‘I’m not sure yet’ and ‘I don’t know yet’ on how we’ll get the data, because there is a long way to go here and a lot of uncertainty,” says Eoin Fahy, head of responsible investing at KBI Global Investors, a Dublin-headquartered fund manager. “My