Today is Earth Day!  Over at Hackszine.com, Jason has opened the comments up to any and all Earth Day hacks, links and activities.  He has also listed a number of Earth-friendly things that we can do on a daily basis to be kind to our Mother Earth.  Link.

Go out and enjoy the outdoors today! 

Hanging in the city of Muenster Planning Office is this poster which depicts the amount of space required to transport the same number of passengers by car, bus and bicycle.  Link to larger image.  [via reddit]

Previously:
Doctors of the World poster, doctor to patient ratio around the world
The Miniature Earth
Worldmapper, a new way to look at the world

Colin Beavan, "No Impact Man", and his wife and daughter have become true conservationists.  For 10 months now they have been living in their New York City apartment without electricity and haven't bought anything new -- even toilet paper.  Beavan even built a tricycle out of recycled goods so he can cart around his small family around the city. 

Related links:
Tricycling for a Good Cause (ABC News)
Beavan's web page
Beavan's blog