Finca Bellavista is a development on the southern coast of Costa Rica with 5 houses and 24 other buildings, all sustainable treehouse structures.
Feb 20, 2011 Builder Magazine
Popular Science gives a brief intro to nine cities that are setting the bar for the reduction of carbon emissions. The best U.S. site? The fortuitously-named Greensburg, Kansas.
Jun 18, 2010 Popular Science
The New Economics Foundation's "Happy Planet Index" shows that Costa Ricans use fewer resources and lead happier lives than the rest of the world.
Jul 7, 2009 Guardian (UK)