The Japanese government has launched a campaign encouraging people to go to bed and get up extra early in order to reduce household carbon dioxide emissions.

The Morning Challenge campaign, unveiled by the Environment Ministry, is based on the premise that swapping late night electricity for an extra hour of morning sunlight could significantly cut the nation’s carbon footprint…

The amount of carbon dioxide emissions potentially saved from going to bed an hour early was the equivalent of 20 per cent of annual emissions from household lights, “Many Japanese people waste electric power at night time, for example by watching TV until very late,” a ministry spokesperson told The Daily Telegraph.