Giz was a foundation environmental science graduate with extensive knowledge of the WA environment – marine and terrestrial, a demonstrated long history of and commitment to environmental and political activism and extensive skills in collaborative planning, teambuilding and strategic planning. As an MP she held numerous portfolios including biodiversity, urban bushland, marine issues, forests and woodlands, waste management and agriculture. She also drafted, introduced and debated Bills on biodiversity protection, protecting Margaret River from coal mining, cat management and making WA nuclear free.

Most recently she has been working with the WA Forest Alliance helping to achieve significant advances in the conservation of our forests. Giz has a deep commitment to biodiversity conservation; landscape scale restoration; working respectfully with First Nations peoples and recognizing their ongoing custodianship of country; keeping WA nuclear free and urgently responding to the climate emergency.