Was science general manager for environment and society for five years.
Previously science manager for greenhouse gases and carbon sinks, and sustainable business and government.
He led the latter team from inception in 1999, developing new products Enviro-Mark® NZ, E-Manage, EBEX21® and CarboNZeroCertTM and creating the Building Capacity for Sustainable Development and Waka Tohu (Māori business branding) science programmes.