Former US Vice President Al Gore was in the news last week when it was revealed his household energy bill amounted to US$30 000 a year. Jodie Kleinschafer, a Charles Sturt University PhD student currently studying ways households can become more energy efficient, said: “If he is being carbon neutral, using renewable energy sources that are 100 per cent green, then he is not being inconsistent with his environmental stance.” She says there are simple ways to reduce electricity consumption. “Turn down the temperature on your hot water, use the air conditioner less, and don’t turn your heater up quite so high.” Mrs Kleinschafer says “smart meters” are also a useful option for improving energy efficiency because they “give immediate feedback on how much electricity is being used and how much it is costing. Until our electricity is from 100 per cent renewable energy sources, it is in everybody’s best interest to become more energy efficient”.