Earth Day celebration ideas

To celebrate Earth Day some people join protest rallies, some others disappear into the wild, but here is a list of more conventional ideas. Feel free to send your own.

• Calculate your carbon footprint (and preferably try to reduce it).
• Plant a three to offset 730kg of carbon emissions (if not one cuts it down).
• Bike to and from work.
• Recycle (even if no one is looking).
• Avoid plastic bags.