Add Yahoo as a preferred source to see more of our stories on Google. A jumble of empty plastic bottles await reuse. - Westend61/Getty Images You might get eco-guilt when you toss a plastic bottle ...

Teach yourself how to build a plastic bottle house with cob and transform trash into a home. I build houses out of trash. I was inspired by the life of Kenyan Nobel laureate Wangarĩ Maathai, who said, ...

Those plastic bottles you toss right after using them? They can be upcycled into actually useful items in your kitchen, from spice jars to egg separators.

You might get eco-guilt when you toss a plastic bottle into the recycling bin. Will the material from the container really be used to make something new? The answer to that question is unclear.