Yesterday on the show we heard about a new study which found biofuel from locally grown canola could provide an alternative for fossil fuel.
Biofuels are seen as an environmentally friendly option as countries explore ways of decarbonising their economies.
We had a lot of feedback from the interview, including from Dr Mike Joy, who has another perspective.
Mike is a lecturer at the School of Geography, Environment and Earth Sciences Te Herenga Waka-Victoria University of Wellington and says the mantra of "green growth" risks trapping us in a spiral of failures.
We speak to Mike.