In this MadTech Podcast episode, ExchangeWire editor Aimee Newell Tarín is joined by research lead Mat Broughton and Chris Andrews, head of marketing technology at Miroma Founders Network, to discuss the latest in ad tech, media, and marketing.  They look at OpenAI's decision to launch a web browser, a study which highlights the importance of trust as a business driver, and UK ad agencies coming together to call for a ban on fossil fuel advertising.  This week's stories: OpenAI to launch web browser Open AI is on the brink of releasing an AI-powered web browser, according to sources speaking to Reuters.