While many 3D printing enthusiasts use ABS filament, there is cause for concern due to the environmental issues with its inability to biodegrade due to being petroleum-based — while PLA filament is vegetable-based and can be recycled. 3D Printlife and Sierra Resins have come together to create an ABS bio-filament that can be consumed by bacteria in landfills, causing it to biodegrade. They debuted Enviro, the new filament, this week at CES. Check out more details on the process in the full article: http://3dprint.com/35752/enviro-abs-bio-filament/ ‎
Below is a photo of filament offerings: