What’s Earth Day, and what can You do? – Today, global Earth Day is a good reminder, that we should consider each day as “an earth day”. It originated out of a growing global ecological awareness back on April 22, 1970. Now more than 1 billion people in 192 countries take part in what is the largest civic-focused day of action in the world. – It is a day for an example of planting trees or cleaning up neighbourhoods and oceans or nature walks.