<http://schema.org/description>
"April 22 is a great day to celebrate the Earth, but don&amp;#039;t let the calendar stop you from making merry the other 364 days of the year."^^<http://www.w3.org/2001/XMLSchema#string>
<http://science.howstuffworks.com/environmental/green-science/5-ways-earth-day-every-day5.htm>