This Saturday is Earth Day, the day of the year when more than one billion of us celebrate our planet.
Every year, more than one billion people across the world mark the event by showing support for environmental protection.
Festivals, rallies and outdoor events are held in nearly 200 countries – often, with the support of A-list celebrities and political leaders.
What is Earth Day?
Celebrated every year on April 22, Earth Day aims to encourage people across the world to be more environmentally friendly.
This might mean increasing the amount they recycle, volunteering for a local green project or installing solar panels in their home.
Now it is coordinated globally by the non-profit Earth Day Network, which describes it as “the largest secular holiday in the world”.
Each year, festivals, parades and rallies are held in at least 192 countries to demonstrate support for environmental protection.
The day has its own flag, which was created by US peace activist John McConnell and, perhaps unsurprisingly, features a picture of the world on it.
It also has its own anthems – one of which is performed to the tune of Beethoven’s Ode To Joy, but with lyrics about protecting the planet.
This year, more than one billion people are expected to celebrate Earth Day.
For details of events in your area, visit www.earthday.org