"How many of us still fill our kettles when making a drink instead of boiling just the amount of water we need for our cups?" he asked.
"It's a good-news double-whammy. By reducing energy consumption we reduce the need for energy production and reduce CO2 emissions at the same time."
The Bishop spent Thursday afternoon inspecting low-energy light bulbs at Lichfield Cathedral, which have helped cathedral and diocesan offices slash their carbon emissions by 18 tonnes a year - enough to fill 108 double-decker buses.
The Bishops of Lichfield, Shrewsbury, Stafford and Wolverhampton have put together the 'A Heart of Creation' guidebook which lists switching to low-energy bulbs as just one of many steps that individuals can take to do their bit for the environment.
The bishops are challenging the 50,000 churchgoers in the diocese to go one better than simply talking about climate change and to actually do something practical each day that will help bring down their carbon footprints.
Bishop Smith explained: "This isn't about beating ourselves over the heads and saying how naughty we've been; it's about equipping all of us to see that we can make a difference.
"If people don't want nuclear power stations we need to welcome alternative forms of energy production - such as wind power, but we also need to reduce our energy consumption. 'A Heart For Creation' will help people do this," he said.
'A Heart for Creation' can be downloaded free of charge from www.lichfield.anglican.org/lent/ This year Lent runs from 6 February until 22 March.
