This Saturday is Earth Day 2017 , so it’s the perfect time to start thinking about the planet we live on – and how to save it.
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.
But why do we celebrate Earth Day? And how is it observed by people globally?
Here, we provide a guide to the event, which takes place on April 22 each year.
When is Earth Day?
Earth Day is celebrated on April 22 every year.
What is Earth Day?
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…
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