From the Eyebeam organization website (via Inhabitat):

1. Eco Icons

Create one or many information graphics that could be used to make visible environmental / ecological concerns

Thematically, these are icons that engage the politics of information and the persuasion of graphics. Examples of icons could include logos for web sites, stickers to place on objects or buildings, drawings/patterns to draw or stencil on to streets and buildings, stickers/tags that could be shopdropped in stores with information about the environmental impact of a product. You can invent a whole range of icons and their uses. Be creative!

The Eco Icons Challenge will end Monday, November 5, 2007.

2. Eco-Vis

Create an eco-visualization based on at least one set of ecological impact data

Your job as an “eco-visualizer” is to reveal hidden ways of thinking and to suggest alternative frameworks to a theme or various themes, and at least one data set. This could take the form of dynamic data visualization, a print graphic, a real-world intervention, or some other inventive form. The key is to create a greater understanding of the theme or data through clear and inventive design.

The Eco-Vis Challenge will end Saturday, December 8, 2007.