Eleni Polychroniadou is Founder and Commercial Director at Sintali a global green building certification company. She describes herself as "passionate about catalysing global change and on a mission to make every building on this planet green."

A sustainability communicator, she leads sales, business development, public relations and marketing across the sustainability sector.

Eleni is a strong believer in the power of individual action. Individuals are at the core of climate action because they hold power within larger entities, such as corporations, governments and local communities. "When individuals are empowered to make bold decisions within their spheres of influence, we will actually make a difference and drive climate action," she says.