Duncan Meisel, as executive director of Clean Creatives, has been at the forefront of high-profile campaigns calling on the PR and advertising industry to drop their fossil fuel use.

A longtime climate activist and digital strategist for progressive causes, Meisel has rallied 400-plus scientists and more than 100 celebrities and influencers to join Clean Creatives’ effort, prompting Edelman, the world’s largest PR firm, to rethink its work with Big Oil. In his own words, “innovation is all about looking to the needs of the future and bringing them into the present.”