Adam Gillett, Head of Sustainable Investment, and Shahrazad Khan, Sustainability Specialist, both at Willis Towers Watson, discuss sustainability, ESG and stewardship, including what lessons Covid-19 has taught us about ESG-integrated strategies. Looking ahead, to what extent do they think sustainability factors will influence investment returns, and what are the dangers in doing the bare minimum? They also look at different ways of investing sustainably, from tilting and exclusions to positive impact investments.