Clare Hierons is chief operating officer at Accounting for Sustainability (A4S). She is responsible for ensuring A4S has the people, processes and systems needed to deliver on its mission. Clare spent six years delivering carbon reduction programmes for the Carbon Trust before becoming CEO of Carbon Leapfrog, a charity that worked with the legal sector to build capacity in the community energy sector. After leading Leapfrog through a successful merger, Clare was appointed COO of ShareAction, a charity dedicated to driving positive social and environmental change through responsible investment. She holds a degree in Engineering and an MBA from Cranfield School of Management.