Adam Gillett, Head of Sustainable Investment, and Shahrazad Khan, Sustainability Specialist, both at Willis Towers Watson talk about the regulatory momentum behind sustainable investment and the actions that investors can and should take on this front. Institutional investors have great power to influence change – the time has come to exercise this power and in particular to stop ignoring the impact investment decisions have on the wider world. In dealing with climate change, a "carbon journey plan" could be a useful framework for setting a strategy and putting actions into context.