Earth Day was originally celebrated on the spring equinox around March 20th. It is now celebrated annually on April 22nd to increase awareness of environmental issues. It began in the US in 1970 as an environmental teach-in organized by Senator Gaylord Nelson and now involves events in over 175 countries coordinated by the Earth Day Network. The UN designated April 22nd as International Mother Earth Day in 2009.

1. Earth Day originally celebrated at Spring
Equinox around March 20, is an annual day on
which events are held worldwide to increase
awareness and appreciation of the Earth's
natural environment. Now Earth Day is
coordinated globally by the Earth Day
Network, and is celebrated in more than 175
countries every year. In 2009, the United
Nations designated April 22 International
Mother Earth Day. Earth Day is planned for
April 22 in all years at least through 2015.

2.  The name and concept of Earth Day was pioneered by John
McConnell in 1969 at a UNESCO Conference in San
Francisco. He proposed March 21, 1970, the first day of spring
in the northern hemisphere. This day of nature's equipoise was
later sanctioned in a Proclamation signed by Secretary General
U Thant at the United Nations. A month later a separate Earth
Day was founded by United States Senator Gaylord Nelson as
an environmental teach-in first held on April 22, 1970. While
this April 22 Earth Day was focused on the United States, an
organization launched by Denis Hayes, who was the original
national coordinator in 1970, took it international in 1990 and
organized events in 141 nations. Numerous communities
celebrate Earth Week, an entire week of activities focused on
environmental issues.

3. There are over 300 nature centres in
British cities and more than 30 in London.
Children go there with their teachers to
study and enjoy nature. There are a lot of
environment groups in British: Friends of
the Earth , Greenpeace , London Wildlife ,
Trust, etc .

6. British children learn a lot about
the Earth at school . They celebrate
Earth Day . They get special
environmental education . Even
though they are children, and they can`t
do much about pollution or energy
waste , there are a lot of ways in which
they can help to save the Earth .