Hon MICHAEL WOOD: Our transport emissions are the fastest-growing source of greenhouse gas emissions in New Zealand, so we need to start taking action now if we're going to meet our 2050 targets. These new ferries will reduce the Interislander's carbon emissions by 40 percent, with initiatives like using battery power for manoeuvring. They are also futureproofed so that more batteries can be added over time, and are to be modified to run on other low-carbon fuels like hydrogen as they become available in the future.