Source: United Kingdom UK Parliament (video statements)
Tonight, Parliament will join landmarks across the world taking part in #EarthHour 2025.
All non-essential lights will be switched off from 8:30pm to 9:30pm to raise awareness of environmental issues.
This is supported by the Speaker of the House of Commons and Lord Speaker @HouseofLords as a demonstration of Parliament’s longstanding commitment to improving sustainability across the estate and beyond.