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, launched by the Environment Ministry, is based on the belief that changing late night electricity for an extra hour of morning sunlight could greatly cut the nation's _ . A typical family can reduce its carbon dioxide footprint by 85kg a year if everyone goes to bed and gets up one hour earlier, according to the campaign. The amount of carbon dioxide emissions that might be saved from going to bed an hour earlier equals 20% of annual emissions from household lights. "Many Japanese people waste electrical power at night-time, for example, by watching TV until very late," a ministry spokesperson told The Daily Telegraph. "But going to bed early and getting up early can avoid wasting electrical power which causes carbon dioxide emissions. If people change their lifestyle, we can save energy and reduce emissions." The campaign also suggests that people take advantage of an extra hour of morning sunlight by improving their lifestyle in general by running, doing yoga and eating a nutritious breakfast. It is the latest initiative   fighting climate change by the Japanese Environment Ministry, which is faced with the challenge of reducing carbon dioxide emissions by 25% from the level of 1990 within the next decade. It was the same government department that launched the Cool Biz campaign five years ago, which encourages workers to wear short-sleeved shirts and offices not to turn air conditioner lower than 28 degrees Celsius during summer. By 2020, the Japanese hope to reduce carbon dioxide emission from the level of 1990 by  _  .
25% 85% 28% 20%