Hon MICHAEL WOOD: Given that transport makes up 47 percent of carbon dioxide emissions, it's important that the sector does its bit to get us to net zero by 2050. The import standard will result in average fuel savings for families of nearly $7,000 over the lifetime of their vehicles and stop over 3 million tonnes of climate pollution going into our atmosphere. The impact of decarbonising the bus fleet by 2035 is estimated to prevent up to 4.5 million tonnes of carbon dioxide by 2050, and biofuels over time will prevent millions of tonnes of emissions from cars, trucks, trains, ships, and planes. On this note, I note that an estimated 6.3 million tonnes of carbon dioxide emissions would have been avoided had the Clark Government's biofuel mandate not been abolished by the incoming National Government in 2008.