The story of how a tiny, unknown hedge fund took on a giant of corporate America over climate change - and won. Charlie Penner of Engine No 1 talks about the very public proxy campaign he launched against Exxon Mobil, forcing the oil major to prepare for a future free of fossil fuels.   In the third episode of our special five-part series on sustainable or ESG investing, produced in partnership with the FT’s Moral Money team, Derek Brower, US energy editor, and Attracta Mooney, the FT’s investment correspondent, reflect on whether the battle between Engine No 1 and Exxon marks the beginning of a new kind of activist investor. Engine No 1, the giant-killing hedge fund, has big plans DWS probes spark fears of greenwashing claims across investment industry Check out stories and up-to-the-minute news from the Moral Money team here.  Get 30 days of the premium Moral Money newsletter free, together with complimentary access to FT.com for the same period, visit www.ft.com/insideesg Review clips: The Sun, Channel 4 News, Euronews, PBS Newshour, GMA, CNN, CNBC, ExxonMobil   See acast.com/privacy for privacy and opt-out information.