UC Berkeley's Earth Week 2015 will be held April 19th-April 26th.
The calendar of events is available at http://serc.berkeley.edu/earthweek/
Download a print calendar at http://serc.berkeley.edu/blog/wp-content/uploads/2014/04/EarthweekCalend...
Use #calearthweek on social media.
Earth Week website: http://serc.berkeley.edu/earthweek
Earth Week Facebook Invitation: https://www.facebook.com/events/627574367373481/