I entered my car use and came up with 1.84 tonnes (as compared with 4.3 tonnes for average car in Australia). To offset these emissions, Green Fleet would plant 7 native trees. So each native tree would be worth around 0.25 tonnes per year of uptake.
Green Fleet say their aim is to recapture 268 tonnes of C02e per hectare with 750 to 1200 stems planted per hectare.
And I make a true declaration that I do not have a conflict of interest in writing this blog, as I am not an investor or associate of Green Fleet. Merely grateful for the information I found there.