Security, liquidity and yield have traditionally been the treasurer’s top investment considerations. But with the call for greater corporate social responsibility – and the solid performance of sustainable investments – ESG is now becoming a fourth investment dimension. Ed Lopez (Calastone), Reyer Kooy (DWS) and François Masquelier (EACT/ ATEL) explain how treasurers can integrate ESG into their policies and practices, identify pitfalls, and predict where the responsible investment journey is headed next.