earth day was celebrated around the world on september 21.
earth day was celebrated around the world on september 21.
when was earth day celebrated around the world?
september 21
earth day









































earth day is an annual event celebrated around the world on april 22 to demonstrate support for environmental protection. first celebrated in 1970, it now includes events coordinated globally by the earth day network in more than 193 countries.









































on earth day 2016, the landmark paris agreement was signed by the united states, china, and some 120 other countries. this signing satisfied a key requirement for the entry into force of the historic draft climate protection treaty adopted by consensus of the 195 nations present at the 2015 united nations climate change conference in paris.
earth day
bullet::::- "pale blue dot"









































bullet::::- national cleanup day









































bullet::::- paris agreement









































bullet::::- politics of global warming









































bullet::::- under2 coalition









































bullet::::- world environment day by the united nations environment programme (unep)









































bullet::::- world water day









































section::::external links.









































section::::external links.:earth day.









































bullet::::- earth day network – coordinating worldwide events for earth day









































bullet::::- united states earth day – the u.s. government's "earth day" site









































bullet::::- earth day canada – the canadian official site for "earth day"









































bullet::::- earth day at the history channel









































bullet::::- epa journal: earth day – an entire journal dedicated to earth day, written in early 1990
earth day