A new study exposes public myths of energy conservation, such as turning off lights and hanging clothes up to dry. In reality, making machines more efficient saves more energy. "Which is the more effective way to reduce your household's carbon footprint—turn off lights and appliances when you are not using them, or switch to more energy efficient devices? Environmental experts say the latter will have a far greater impact on the greenhouse gas emissions that your home is responsible for, but research published this week suggests few of us realise it. Over half of the 505 people questioned chose steps like turning off lights and gadgets or driving less, while only 12 per cent mentioned more effective efficiency improvements such as swapping incandescent light bulbs for compact fluorescent bulbs, or using more efficient household appliances or cars when renewing."