Leaders of the countries of the European Union have decided to ban use of the standard incandescent light bulb in their countries within two years.
Environmentalists said the change would save the public up to £5.4 billion a year in fuel bills and also about 20 million tonnes of carbon emissions every year.
The energy that would be saved in the UK is equivalent to one medium-sized power station.
This is all part of the EU plan for a 20% reduction in their greenhouse emissions by the year 2020.
And what exactly is the US doing?
Talking about maybe doing something.